Merge pull request #1031 from nginx-proxy/dependabot/github_actions/docker/build-push-action-4

ci: Bump docker/build-push-action from 3 to 4

Author: buchdag

.github/workflows/dockerhub.yml

@@ -67,7 +67,7 @@ jobs:
 
       - name: Build and push
         id: docker_build
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           context: .
           build-args: GIT_DESCRIBE=${{ env.GIT_DESCRIBE }}