chore(deps): update docker/build-push-action action to v6

Author: renovate[bot]

.github/workflows/deploy.yml

@@ -143,7 +143,7 @@ jobs:
 
       - name: Build and push Docker image
         id: build
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: docker/dockerfiles/Dockerfile.prod