rolling update: add mgr exception for jewel minor updates
rolling update: add mgr exception for jewel minor updates

When update from a minor Jewel version to another, the playbook will
fail on the task "fail if no mgr host is present in the inventory".
This now can be worked around by running Ansible with_items

-e jewel_minor_update=true

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1535382
Signed-off-by: Sébastien Han <62d754cc350e84d3b1c32ae79f976f5348e74a40@redhat.com>
(cherry picked from commit 8af745947695ff7dc543754db802ec57c3238adf)
Signed-off-by: Sébastien Han <62d754cc350e84d3b1c32ae79f976f5348e74a40@redhat.com>

fgal/ceph-ansible,fgal/ceph-ansible