Use an updated CI image
Use an updated CI image

... from https://github.com/containers/automation_images/pull/137 .

This updates the docker/distribution registry to 2.8.1, allowing it
to accept OCI images.

Signed-off-by: Miloslav Trmač <9c008e38982a5397deb855345fb164f0558459ae@redhat.com>

mtrmac/skopeo,mtrmac/skopeo,mtrmac/skopeo