upgrade: accept HEALTH_OK and HEALTH_WARN as valid state
upgrade: accept HEALTH_OK and HEALTH_WARN as valid state

3a100cfa5265b3a5327ef6a8d382a8059391b903 introduced a check which is a
bit too restrictive, let's accept HEALTH_OK and HEALTH_WARN.

Signed-off-by: Guillaume Abrioux <30a9df5a0293a6108675377fa1673f7aa713f915@redhat.com>

ceph/ceph-ansible,ceph/ceph-ansible