This container can be pulled via:
  docker pull registry.opensuse.org/home/meier_josef/opensuse_leap_micro_6.1_containers/opensuse/leap-micro/6.1/toolbox:13.2
  docker pull registry.opensuse.org/home/meier_josef/opensuse_leap_micro_6.1_containers/opensuse/leap-micro/6.1/toolbox:13.2-4.21
  docker pull registry.opensuse.org/home/meier_josef/opensuse_leap_micro_6.1_containers/opensuse/leap-micro/6.1/toolbox:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.