This container can be pulled via:
  docker pull registry.opensuse.org/devel/openqa/containers15.6/openqa_webui:latest
  docker pull registry.opensuse.org/devel/openqa/containers15.6/opensuse/openqa-webui:5.1750408965.72531
  docker pull registry.opensuse.org/devel/openqa/containers15.6/opensuse/openqa-webui:5.1750408965.72531.10.1137
  docker pull registry.opensuse.org/devel/openqa/containers15.6/opensuse/openqa-webui:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.