Bump docker/login-action from 2.0.0 to 2.1.0 (#198)

Bumps [docker/login-action](https://github.com/docker/login-action) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v2.0.0...v2.1.0)

---
updated-dependencies:
- dependency-name: docker/login-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/push.yml

@@ -25,7 +25,7 @@ jobs:
           key: ${{runner.os}}-buildx-${{github.sha}}
           restore-keys: ${{runner.os}}-buildx-
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v2.0.0
+        uses: docker/login-action@v2.1.0
         with:
           registry: ${{env.REGISTRY}}
           username: ${{env.REPO_OWNER}}