This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/bci/openjdk:21-25.7
  docker pull registry.opensuse.org/opensuse/bci/openjdk:21.0.4.0
  docker pull registry.opensuse.org/opensuse/bci/openjdk:21.0.4.0-25.7

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.