Build(deps): Bump docker/metadata-action from 6.0.0 to 6.1.0 (#667)

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 6.0.0 to 6.1.0.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](docker/metadata-action@030e881...80c7e94)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  dependency-version: 6.1.0
  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>
Co-authored-by: Tetsuo Koyama <tkoyama010@gmail.com>

Author: dependabot[bot]

.github/workflows/docker.yaml

@@ -36,7 +36,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Extract metadata for the Jupyter Docker image
         id: meta
-        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf
+        uses: docker/metadata-action@80c7e94dd9b9319bd5eb7a0e0fe9291e23a2a2e9
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
       - name: Build and push the Jupyter Docker image