Skip broken ceph tests. (#32912)

Root cause is not clear, the container won't start without any changes
or recent commits.

(cherry picked from commit 3b4e9d7)

metricbeat/module/ceph/test_ceph.py

@@ -8,6 +8,7 @@
 
 
 @metricbeat.parameterized_with_supported_versions
+@unittest.skip("broken test suite: https://github.com/elastic/beats/issues/32898")
 class Test(metricbeat.BaseTest):
 
     COMPOSE_SERVICES = ['ceph']