The cinder-backup package got a few updates in a victoria point release. Try to get that in our mirror.
Version in our mirror as of this writing:
Desired version:
- 17.2.0-4 https://docs.openstack.org/releasenotes/cinder/victoria.html#relnotes-17-2-0-4-stable-victoria
The debian packaging git repository contains 17.2.0: https://salsa.debian.org/openstack-team/services/cinder/-/tree/17.2.0 but it has not been built apparently