Update push-docker-image.yaml

Author: amirhnajafiz

Diff for: .github/workflows/push-docker-image.yaml

@@ -17,6 +17,10 @@ jobs:
     steps:
       - name: Check out the repo
         uses: actions/checkout@v3
+        
+      - name: Set output
+        id: vars
+        run: echo "tag=${GITHUB_REF#refs/*/}" >> $GITHUB_OUTPUT
 
       - name: Log in to Docker Hub
         uses: docker/login-action@v2
@@ -33,4 +37,4 @@ jobs:
           context: .
           file: ./build/Dockerfile
           push: true
-          tags: ${{ env.DOCKER_USER }}/${{ env.REPO_NAME }}:${GITHUB_REF#refs/tags/}
+          tags: ${{ env.DOCKER_USER }}/${{ env.REPO_NAME }}:${{ steps.vars.outputs.tag }}