chore(ci): bump docker/metadata-action from 3.6.2 to 3.7.0 (#173)

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 3.6.2 to 3.7.0.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](docker/metadata-action@v3.6.2...v3.7.0)

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

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

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

.github/workflows/main.yaml

@@ -29,7 +29,7 @@ jobs:
         fetch-depth: 0
     - name: Docker meta
       id: docker_meta
-      uses: docker/metadata-action@v3.6.2
+      uses: docker/metadata-action@v3.7.0
       with:
         images: ghcr.io/radiorabe/catpage
         flavor: |