This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/bci/gcc:15
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/bci/gcc:15.0
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/bci/gcc:15.0-3.18
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/bci/gcc:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.