Bump docker/setup-buildx-action from 2.6.0 to 2.9.1

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 2.6.0 to 2.9.1.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@6a58db7...4c0219f)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/automatic-release.yml

@@ -34,7 +34,7 @@ jobs:
         uses: docker/setup-qemu-action@2b82ce82d56a2a04d2637cd93a637ae1b359c0a7
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@6a58db7e0d21ca03e6c44877909e80e45217eed2
+        uses: docker/setup-buildx-action@4c0219f9ac95b02789c1075625400b2acbff50b1
 
       - name: Release
         uses: laminas/automatic-releases@12dde9b998d13e6721e5d000cf0c6a513ebdb98b