chore(deps): update docker/build-push-action action to v7

Author: renovate[bot]

.github/workflows/update-images.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v6
       - uses: docker/setup-buildx-action@v3
       - run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u $ --password-stdin
-      - uses: docker/build-push-action@v6
+      - uses: docker/build-push-action@v7
         with:
           file: Dockerfile.builder
           push: true