Always login

Required for registry based cache

.github/workflows/container.yml

@@ -30,7 +30,6 @@ jobs:
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v1
-        if: github.event_name != 'pull_request'
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}