qa/cephfs: ignore when specific OSD is reported down during upgrade

We already ignore health warning regarding OSD being down during upgrade
but health warning regarding specific OSD being down is not added to the
ignorelist which causes upgrade jobs to be marked as failed even though
they were successful.

Fixes: https://tracker.ceph.com/issues/66877
Signed-off-by: Rishabh Dave <[email protected]>

Author: rishabh-d-dave

qa/suites/fs/upgrade/mds_upgrade_sequence/overrides/ignorelist_upgrade.yaml

@@ -2,3 +2,4 @@ overrides:
   ceph:
     log-ignorelist:
       - OSD_DOWN
+      - osd.*is down