I have a github config which builds docker with Dockerfile that pulls from a private registry, am getting a 403 error when I have already authenticated, so am not sure if the authentication is for just pushing or error is raised because it pulls container from a different repository, here is the part config:

I created a workflow on a Github Enterprise server. I want to build & push the container with the docker/build-push-action and before push I want to run some tests in the container.