diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 48112e66..90c7f6b3 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 env:
   GO_VER: 1.19.6
   NODE_VER: 16.x
@@ -18,7 +22,7 @@ env:
 
 jobs:
   go:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/setup-go@v3
         with:
@@ -28,7 +32,7 @@ jobs:
       - run: ci/scripts/lint-go.sh
 
   typescript:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
@@ -37,7 +41,7 @@ jobs:
       - run: ci/scripts/lint-typescript.sh
 
   javascript:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
@@ -46,7 +50,7 @@ jobs:
       - run: ci/scripts/lint-javascript.sh
 
   java:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
@@ -56,7 +60,7 @@ jobs:
       - run: ci/scripts/lint-java.sh
 
   shell:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v3
       - run: ci/scripts/lint-shell.sh
diff --git a/.github/workflows/rest-sample.yaml b/.github/workflows/rest-sample.yaml
index f2cae6eb..ee870284 100644
--- a/.github/workflows/rest-sample.yaml
+++ b/.github/workflows/rest-sample.yaml
@@ -16,9 +16,13 @@ on:
     branches: [ "main", "release-2.5" ]
     paths: [ "asset-transfer-basic/rest-api-typescript/**" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test-sample:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
 
     steps:
       - name: Checkout
diff --git a/.github/workflows/test-fsat.yaml b/.github/workflows/test-fsat.yaml
index 60ccef46..2cc63750 100644
--- a/.github/workflows/test-fsat.yaml
+++ b/.github/workflows/test-fsat.yaml
@@ -8,9 +8,13 @@ on:
       - "main"
       - "release-2.5"
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   ansible:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v3
       - name: Set up Full Stack Runtime
@@ -19,7 +23,7 @@ jobs:
         working-directory: full-stack-asset-transfer-guide
 
   appdev:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v3
       - name: Set up Full Stack Runtime
@@ -28,7 +32,7 @@ jobs:
         working-directory: full-stack-asset-transfer-guide
 
   chaincode:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v3
       - name: Set up Full Stack Runtime
@@ -37,7 +41,7 @@ jobs:
         working-directory: full-stack-asset-transfer-guide
 
   cloud:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v3
       - name: Set up Full Stack Runtime
@@ -46,7 +50,7 @@ jobs:
         working-directory: full-stack-asset-transfer-guide
 
   console:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - uses: actions/checkout@v3
       - name: Set up Full Stack Runtime
diff --git a/.github/workflows/test-network-basic.yaml b/.github/workflows/test-network-basic.yaml
index 72b7c1db..19e29b1a 100644
--- a/.github/workflows/test-network-basic.yaml
+++ b/.github/workflows/test-network-basic.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   basic:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     strategy:
       matrix:
         chaincode-language:
diff --git a/.github/workflows/test-network-events.yaml b/.github/workflows/test-network-events.yaml
index 4a6ebd99..4aa890a7 100644
--- a/.github/workflows/test-network-events.yaml
+++ b/.github/workflows/test-network-events.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   events:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     strategy:
       matrix:
         chaincode-language:
diff --git a/.github/workflows/test-network-gateway.yaml b/.github/workflows/test-network-gateway.yaml
index ce49ae68..f21bbe9e 100644
--- a/.github/workflows/test-network-gateway.yaml
+++ b/.github/workflows/test-network-gateway.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   gateway:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     strategy:
       matrix:
         chaincode-language:
diff --git a/.github/workflows/test-network-hsm.yaml b/.github/workflows/test-network-hsm.yaml
index 189a77a1..ac4f8f47 100644
--- a/.github/workflows/test-network-hsm.yaml
+++ b/.github/workflows/test-network-hsm.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   hsm:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     strategy:
       matrix:
         chaincode-language:
diff --git a/.github/workflows/test-network-k8s.yaml b/.github/workflows/test-network-k8s.yaml
index 7898e820..99978ee3 100644
--- a/.github/workflows/test-network-k8s.yaml
+++ b/.github/workflows/test-network-k8s.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   ccaas-java:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -25,7 +29,7 @@ jobs:
           CHAINCODE_LANGUAGE: java
 
   ccaas-external:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -37,7 +41,7 @@ jobs:
           CHAINCODE_LANGUAGE: external
 
   k8s-builder:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -50,7 +54,7 @@ jobs:
           CHAINCODE_BUILDER: k8s
 
   multi-namespace:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     steps:
       - name: Checkout
         uses: actions/checkout@v3
diff --git a/.github/workflows/test-network-ledger.yaml b/.github/workflows/test-network-ledger.yaml
index 5bc6669b..8de623d0 100644
--- a/.github/workflows/test-network-ledger.yaml
+++ b/.github/workflows/test-network-ledger.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   basic:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     strategy:
       matrix:
         chaincode-language:
diff --git a/.github/workflows/test-network-off-chain.yaml b/.github/workflows/test-network-off-chain.yaml
index 1e5840d4..f002f1a6 100644
--- a/.github/workflows/test-network-off-chain.yaml
+++ b/.github/workflows/test-network-off-chain.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   off-chain:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     strategy:
       matrix:
         chaincode-language:
diff --git a/.github/workflows/test-network-private.yaml b/.github/workflows/test-network-private.yaml
index 36ec02de..465c8236 100644
--- a/.github/workflows/test-network-private.yaml
+++ b/.github/workflows/test-network-private.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   private:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     strategy:
       matrix:
         chaincode-language:
diff --git a/.github/workflows/test-network-sbe.yaml b/.github/workflows/test-network-sbe.yaml
index 51a12694..f0fee796 100644
--- a/.github/workflows/test-network-sbe.yaml
+++ b/.github/workflows/test-network-sbe.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   SBE:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     strategy:
       matrix:
         chaincode-language:
diff --git a/.github/workflows/test-network-secured.yaml b/.github/workflows/test-network-secured.yaml
index df075158..bbe29235 100644
--- a/.github/workflows/test-network-secured.yaml
+++ b/.github/workflows/test-network-secured.yaml
@@ -11,9 +11,13 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   secured:
-    runs-on: ubuntu-20.04
+    runs-on: buildjet-2vcpu-ubuntu-2204
     strategy:
       matrix:
         chaincode-language: