upgrade: fix upgrade jewel to luminous for mgr nodes
upgrade: fix upgrade jewel to luminous for mgr nodes

mgr nodes can't be upgraded from jewel to luminous because ceph-mgr role
is skipped because of the condition `when:
"ceph_release_num[ceph_release] >= ceph_release_num.luminous"`. Indeed,
ceph-mgr package is upgraded in `ceph-mgr` role, therefore,
`ceph_release` is still set to the old version. It means the when can't
be satisfied.

Signed-off-by: Guillaume Abrioux <30a9df5a0293a6108675377fa1673f7aa713f915@redhat.com>
(cherry picked from commit 302e563601cd6820b1ae44fabdfb1506688c7c9b)

fgal/ceph-ansible,travmi/ceph-ansible,ceph/ceph-ansible,jtaleric/ceph-ansible,font/ceph-ansible,ceph/ceph-ansible,travmi/ceph-ansible,jtaleric/ceph-ansible,fgal/ceph-ansible,font/ceph-ansible