This container can be pulled via:
  docker pull registry.opensuse.org/home/illuusio/images/images_15.6/forgejo:15.6
  docker pull registry.opensuse.org/home/illuusio/images/images_15.6/forgejo:9.0.3
  docker pull registry.opensuse.org/home/illuusio/images/images_15.6/forgejo:9.0.3-19.21

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.