Define all the configuration and actions needed so that, for a branch in a fork, a container image hosted in GH container registry is created.

Setup an access token that can be shared within the eng team, not coming from any personal user, in order to use it to do authenticated pulls from the GH container registry.

In this way, the tester/reviewer will be able to easy use that image in the k8s/OCP env once done the puller token secret configuration the first time.