This container can be pulled via:
  docker pull registry.opensuse.org/devel/openqa/containers15.6/openqa_worker:latest
  docker pull registry.opensuse.org/devel/openqa/containers15.6/opensuse/openqa-worker:4.6.1721649906
  docker pull registry.opensuse.org/devel/openqa/containers15.6/opensuse/openqa-worker:4.6.1721649906.17.322
  docker pull registry.opensuse.org/devel/openqa/containers15.6/opensuse/openqa-worker:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.