Bump docker/metadata-action from 4.5.0 to 4.6.0 (#603)

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](https://github.com/docker/metadata-action/compare/v4.5.0...v4.6.0)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/docker.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v4.5.0
+        uses: docker/metadata-action@v4.6.0
         with:
           images: ghcr.io/${{ github.repository }}