This container can be pulled via:
  docker pull registry.opensuse.org/devel/openqa/containers/opensuse/openqa-client:5.1781327105.7
  docker pull registry.opensuse.org/devel/openqa/containers/opensuse/openqa-client:5.1781327105.7.10.2099
  docker pull registry.opensuse.org/devel/openqa/containers/opensuse/openqa-client:latest
  docker pull registry.opensuse.org/devel/openqa/containers/tumbleweed:client

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.