This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/bci/dotnet-sdk:9.0
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/bci/dotnet-sdk:9.0.0
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/bci/dotnet-sdk:9.0.0-12.6

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.