[github] bump docker/login-action from 2 to 3 (#19)

Bumps [docker/login-action](https://github.com/docker/login-action) from 2 to 3.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v2...v3)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/buildx.yaml

@@ -61,7 +61,7 @@ jobs:
       uses: docker/setup-buildx-action@v3  # See https://github.com/docker/setup-buildx-action
 
     - name: Login to dockerhub
-      uses: docker/login-action@v2  # See https://github.com/docker/login-action
+      uses: docker/login-action@v3  # See https://github.com/docker/login-action
       with:
         username: ${{ secrets.DOCKERHUB_USERNAME }}
         password: ${{ secrets.DOCKERHUB_TOKEN }}  # Get access token from https://hub.docker.com/settings/security