Пробую ставить и вот что пишет:
[root@01 ~]# yum install pg_probackup-{std,ent}-{13,12,11,10,9.6}
Updating Subscription Management repositories.
Unable to read consumer identity

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

Repository 'docker-ce-edge' is missing name in configuration, using id.
PG_PROBACKUP Packages for RedHat Linux - x86_64 1.1 kB/s | 177 B 00:00
Errors during downloading metadata for repository 'pg_probackup':

• Status code: 404 for https://repo.postgrespro.ru/pg_probackup/rpm/latest/rhel-8-x86_64/repodata/repomd.xml (IP: 10.63.11.61)
  Error: Failed to download metadata for repo 'pg_probackup': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried