ceph-mgr: add saml python lib for dashboard SSO
The dashboard SSO mgr module requires the saml python library to be
installed. This is only a valid scenario for RHCS deployment because
the saml python library isn't available in other classic repositories.
This package is present in RHCS Tools repository so we also need to
enable it on the mgr nodes.
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1820233
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit
6617d90733d08b03779657c0129b7a7089eb4a90)