[TripleO] Gate blocker on Wallaby/Victoria/Train - Content-provider job failing

Hello All, Currently, we have a check/gate blocker on Tripleo Content-provider job for wallaby and earlier branches. The content-provider job cannot pull Ceph related containers because quay.ceph.io is not accessible. The details have been added to the launchpad bug[1]. Please hold rechecks while we are investigating the issue. In the meantime, We are trying to switch the registry to pull ceph related containers and waiting for the triple ceph team squad reviews on the patch[2]. [1] https://bugs.launchpad.net/tripleo/+bug/1973115 [2] https://review.opendev.org/c/openstack/tripleo-common/+/841512 Sandeep (on behalf of TripleO CI team)