The default role list now adds "manager" by default. This new
default role was added in Keystone 24.0.0.0rc1, that includes
[1].
[1]https://review.opendev.org/c/openstack/keystone/+/822601
Story: #2010923
Task: #48787
Change-Id: I3eeca1a0296137eef777770bff4993a56e2fcc5c
(cherry picked from commit 335bfdc38f)