[plugin/ceph_mon] Collect stuck PGs

Signed-off-by: Ponnuvel Palaniyappan <pponnuvel@gmail.com>

Author: pponnuvel

sos/report/plugins/ceph_mon.py

@@ -165,6 +165,7 @@ def setup(self):
             "osd pool ls detail",
             "osd stat",
             "pg dump",
+            "pg dump_stuck",
             "pg stat",
             "status",
             "time-sync-status",