add id

Author: HwuanPage

.github/workflows/pr-workflow.yml

@@ -74,6 +74,7 @@ jobs:
           username: ${{github.actor}}
           password: ${{secrets.GITHUB_TOKEN}}
       - name: Extract metadata
+        id: meta
         uses: docker/metadata-action@v5
         with:
           images: ${{env.REGISTRY}}/${{env.IMAGE_NAME}}