This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/suse/postgres:16
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/suse/postgres:16.15-371.21

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.