Update build-and-push.yml

.github/workflows/build-and-push.yml

@@ -8,26 +8,39 @@ on:
       - main
   workflow_dispatch:
 
-
 jobs:
   build-and-push:
-    if: github.event.pull_request.merged == true && contains(github.event.pull_request.labels.*.name, 'CI:Build')
     runs-on: ubuntu-latest
-
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Fetch PR labels
+        id: get-labels
+        run: |
+          PR_NUMBER=$(jq --raw-output .pull_request.number "$GITHUB_EVENT_PATH")
+          LABELS=$(gh pr view $PR_NUMBER --json labels --jq '.labels[].name' || echo "")
+          echo "PR_LABELS=${LABELS}" >> $GITHUB_ENV
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Check if PR has CI:Build label
+        if: contains(env.PR_LABELS, 'CI:Build')
+        run: echo "CI:Build label found, proceeding with build."
+
       - name: Set up Docker Buildx
+        if: contains(env.PR_LABELS, 'CI:Build')
         uses: docker/setup-buildx-action@v3
 
       - name: Log in to Docker Hub
+        if: contains(env.PR_LABELS, 'CI:Build')
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Build and push Docker image
+        if: contains(env.PR_LABELS, 'CI:Build')
         run: |
           docker build -t ${{ secrets.DOCKER_USERNAME }}/go-ethereum:latest .
           docker push ${{ secrets.DOCKER_USERNAME }}/go-ethereum:latest