chore: update docker/build-push-action action to v7

Author: renovate[bot]

.github/workflows/PUBLISH_DOCKER.yml

@@ -33,7 +33,7 @@ jobs:
         echo "PUBLISH_TAG=$PUBLISH_TAG" >> $GITHUB_ENV
     - name: Build and push
       id: docker_build
-      uses: docker/build-push-action@v6
+      uses: docker/build-push-action@v7
       with:
         context: ./
         file: ./support/docker/Dockerfile