chore (deps): bump docker/metadata-action from 4 to 6

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 4 to 6.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](https://github.com/docker/metadata-action/compare/v4...v6)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/releases.yml

@@ -59,7 +59,7 @@ jobs:
 
       - name: Image Metadata
         id: image-metadata
-        uses: docker/metadata-action@v4
+        uses: docker/metadata-action@v6
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           tags: |