Bump docker/metadata-action from 3 to 4

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 3 to 4.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Upgrade guide](https://github.com/docker/metadata-action/blob/master/UPGRADE.md)
- [Commits](docker/metadata-action@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/release.yml

@@ -33,7 +33,7 @@ jobs:
         password: ${{ secrets.GITHUB_TOKEN }}
     - uses: docker/setup-buildx-action@v2
     - id: meta
-      uses: docker/metadata-action@v3
+      uses: docker/metadata-action@v4
       with:
         images: ghcr.io/${{ github.repository }}/frontend
         flavor: |