This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/sle-15-sp5/containerfile/bci/dotnet-sdk:6.0
  docker pull registry.opensuse.org/devel/bci/sle-15-sp5/containerfile/bci/dotnet-sdk:6.0-149.57
  docker pull registry.opensuse.org/devel/bci/sle-15-sp5/containerfile/bci/dotnet-sdk:6.0.31
  docker pull registry.opensuse.org/devel/bci/sle-15-sp5/containerfile/bci/dotnet-sdk:6.0.31-149.57

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.