Update docker/setup-buildx-action action to v4 (#964)

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

Author: renovate[bot]

.github/workflows/release-docker.yaml

@@ -64,7 +64,7 @@ jobs:
     needs: publish
     runs-on: ubuntu-latest
     steps:
-      - uses: docker/setup-buildx-action@v3
+      - uses: docker/setup-buildx-action@v4
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v4