This container can be pulled via:
  docker pull registry.opensuse.org/devel/openqa/containers15.5/openqa_webui_lb:latest
  docker pull registry.opensuse.org/devel/openqa/containers15.5/opensuse/openqa-webui-lb:4.6.1715593009
  docker pull registry.opensuse.org/devel/openqa/containers15.5/opensuse/openqa-webui-lb:4.6.1715593009.7.639
  docker pull registry.opensuse.org/devel/openqa/containers15.5/opensuse/openqa-webui-lb:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.