Bump docker/setup-buildx-action from 3.4.0 to 3.6.1 (#214)

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 3.4.0 to 3.6.1.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@4fd8129...988b5a0)

---
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/docker.yaml

@@ -45,7 +45,7 @@ jobs:
 
       # Workaround: https://github.com/docker/build-push-action/issues/461
       - name: Setup Docker buildx
-        uses: docker/setup-buildx-action@4fd812986e6c8c2a69e18311145f9371337f27d4
+        uses: docker/setup-buildx-action@988b5a0280414f521da01fcc63a27aeeb4b104db
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action