Bump docker/login-action from 3.1.0 to 3.6.0

Bumps [docker/login-action](https://github.com/docker/login-action) from 3.1.0 to 3.6.0.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](https://github.com/docker/login-action/compare/v3.1.0...v3.6.0)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-version: 3.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/onpush_builder.yaml

@@ -175,7 +175,7 @@ jobs:
 
       - name: Login to GitHub Container Registry
         if: env.BUILD_ARGS != '--test'
-        uses: docker/login-action@v3.1.0
+        uses: docker/login-action@v3.6.0
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}