This container can be pulled via:
  docker pull registry.opensuse.org/systemsmanagement/uyuni/master/servercontainer/containers/uyuni/proxy-squid:2023.10
  docker pull registry.opensuse.org/systemsmanagement/uyuni/master/servercontainer/containers/uyuni/proxy-squid:2023.10.11.25.uyuni3
  docker pull registry.opensuse.org/systemsmanagement/uyuni/master/servercontainer/containers/uyuni/proxy-squid:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.