This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/slcc/production/containerfile/slcc/production/openjdk:21
  docker pull registry.opensuse.org/devel/bci/slcc/production/containerfile/slcc/production/openjdk:21-2.49

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.