Bump docker/metadata-action from 5.8.0 to 6.0.0

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 5.8.0 to 6.0.0.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](docker/metadata-action@v5.8.0...v6.0.0)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/release.yml

@@ -99,7 +99,7 @@ jobs:
         uses: docker/setup-buildx-action@v4.0.0
       - name: Docker meta
         id: meta
-        uses: docker/metadata-action@v5.8.0
+        uses: docker/metadata-action@v6.0.0
         with:
           # this is triggered by the schedule so we want to actually use the checked out information
           # and not the context from the workflow itself.