github-actions: bump docker/login-action from 3.0.0 to 3.1.0

Bumps [docker/login-action](https://github.com/docker/login-action) from 3.0.0 to 3.1.0.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@343f7c4...e92390c)

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

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

.github/workflows/docker.yml

@@ -91,7 +91,7 @@ jobs:
 
     - name: Login to DockerHub
       if: success() && github.repository == 'openthread/openthread' && github.event_name != 'pull_request'
-      uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
+      uses: docker/login-action@e92390c5fb421da1463c202d546fed0ec5c39f20 # v3.1.0
       with:
         username: ${{ secrets.DOCKER_USERNAME }}
         password: ${{ secrets.DOCKER_PASSWORD }}