CI: some adjustments for harbor.fd.o
While migrating to the new registry, it turns out that we still have one plain registry path in the CI and buildah was not checking the remote manifests.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
While migrating to the new registry, it turns out that we still have one plain registry path in the CI and buildah was not checking the remote manifests.