cephadm: don't collect image ids for daemons with no container info

This was missed as part of
ceph@4940596
as this particular bit seems to only cause an issue
when you pass in --name to shell and the daemon
you pass to --name is not running. That procedure (stopping the daemon
and then passing it's name to shell) is what is used to run tools like
ceph-objectstore-tool and ceph-monstore-tool for debugging

Fixes: https://tracker.ceph.com/issues/70989

NOTE: for the tracker, the actual specific issue this change
fixes is the one shown in https://tracker.ceph.com/issues/70989#note-2
The original reported issue was fixed by the linked commit

Signed-off-by: Adam King <[email protected]>

Author: adk3798

src/cephadm/cephadmlib/container_lookup.py

@@ -132,7 +132,9 @@ def infer_local_ceph_image(
     ]
     # collect the running ceph daemon image ids
     images_in_use_by_daemon = set(
-        d.image_id for d, n in matching_daemons if n == daemon_name
+        d.image_id
+        for d, n in matching_daemons
+        if (n == daemon_name and d is not None)
     )
     images_in_use = set(
         d.image_id for d, _ in matching_daemons if d is not None