Bump docker/login-action from 1.9.0 to 2.1.0

Bumps [docker/login-action](https://github.com/docker/login-action) from 1.9.0 to 2.1.0.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@28218f9...f4ef78c)

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

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

.github/workflows/docker-publish.yml

@@ -52,7 +52,7 @@ jobs:
       # https://github.com/docker/login-action
       - name: Log into registry ${{ env.REGISTRY }}
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
+        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}