Update docker/build-push-action action to v4.1.1 (#1)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/push.yaml

@@ -29,7 +29,7 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - uses: docker/setup-buildx-action@v2
-      - uses: docker/build-push-action@v4.0.0
+      - uses: docker/build-push-action@v4.1.1
         with:
           context: .
           push: true