Add sdkVersion CI check (#1949)

* Add sdkVersion CI check

* replace hardcoded version

---------

Co-authored-by: luigi liu <luigiliu@amazon.com>

Author: luigi617

.github/actions/setup-build/action.yml

@@ -5,12 +5,19 @@ description: >
 runs:
   using: composite
   steps:
+    - name: Extract aws-kotlin-repo-tools version
+      shell: bash
+      run: |
+        export AWS_KOTLIN_REPO_TOOLS_VERSION=$(grep '^aws-kotlin-repo-tools-version' ./gradle/libs.versions.toml | sed -E 's/.*= "(.*)"/\1/')
+        echo "Using aws-kotlin-repo-tools version $AWS_KOTLIN_REPO_TOOLS_VERSION"
+        echo "aws_kotlin_repo_tools_version=$AWS_KOTLIN_REPO_TOOLS_VERSION" >> $GITHUB_ENV
+
     - name: Checkout tools
       uses: actions/checkout@v4
       with:
         path: 'aws-kotlin-repo-tools'
         repository: 'aws/aws-kotlin-repo-tools'
-        ref: '0.4.2'
+        ref: ${{ env.aws_kotlin_repo_tools_version }}
         sparse-checkout: |
           .github
     - name: Checkout smithy-kotlin

.github/workflows/sdk-version-check.yml

@@ -0,0 +1,21 @@
+name: SDK Version Check
+
+permissions:
+  contents: read
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, labeled]
+    branches:
+      - main
+      - '*-main'
+  merge_group:
+    types: [checks_requested]
+
+jobs:
+  sdk-version-check:
+    runs-on: ubuntu-latest
+    if: ${{ github.event_name != 'merge_group' }}
+    steps:
+      - name: Check sdkVersion
+        uses: aws/aws-kotlin-repo-tools/.github/actions/sdk-version-check@main