There was a problem with pague.io server and as a result https://pagure.io/releng/fedora-scm-requests/issue/72157 request has not finished properly: The git branch was created, but a package list in Koji was not updated https://koji.fedoraproject.org/koji/taskinfo?taskID=129088198:
BuildError: package perl-Shell not in list for tag epel8-testing-candidate
This seems to be fixed now.
Metadata Update from @ppisar: - Issue close_status updated to: Fixed - Issue status updated to: Closed (was: Open)