This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/zsystems/containerfile/opensuse/cups:2.4.2
  docker pull registry.opensuse.org/opensuse/factory/zsystems/containerfile/opensuse/cups:2.4.2-3.253
  docker pull registry.opensuse.org/opensuse/factory/zsystems/containerfile/opensuse/cups:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.