This container can be pulled via:
  docker pull registry.opensuse.org/systemsmanagement/uyuni/master/servercontainer/containers/uyuni/proxy-salt-broker:2023.10
  docker pull registry.opensuse.org/systemsmanagement/uyuni/master/servercontainer/containers/uyuni/proxy-salt-broker:2023.10.10.58.uyuni3
  docker pull registry.opensuse.org/systemsmanagement/uyuni/master/servercontainer/containers/uyuni/proxy-salt-broker:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.