Bump docker/login-action from 2.0.0 to 2.1.0

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](https://github.com/docker/login-action/compare/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] <support@github.com>

.github/workflows/build-debian-image-latest-iob.yml

@@ -55,7 +55,7 @@ jobs:
         uses: docker/setup-buildx-action@v2.0.0
 
       - name: Login to DockerHub (iobroker)
-        uses: docker/login-action@v2.0.0
+        uses: docker/login-action@v2.1.0
         with:
           username: ${{ secrets.DOCKER_USER_IOB }}
           password: ${{ secrets.DOCKER_PASS_IOB }}