mgr/cephadm: fix REFRESHED column of orch ps being unpopulated

mgr/cephadm: fix REFRESHED column of orch ps being unpopulated

The way the daemon ls data was processed was changed in
https://github.com/ceph/ceph/commit/1fd4132c7c03602719f29230732b12c8afa04779
and it seems that commit removed a line that set the
last_refresh field. This commit just adds it back
in the new location after the change.

Without this in "ceph orch ps" the REFRESHED column
for every daemon just reports "-"

Fixes: https://tracker.ceph.com/issues/62954
Signed-off-by: Adam King <adking@redhat.com>