ClusteredIT must have RestLoggingResource

RestLoggingResource uses ClusteredIT.SERVERS
When running the test suite in the following order: org.infinispan.server.functional.ClusteredIT||org.infinispan.server.functional.ConcurrentShutdownRestIT||org.infinispan.server.functional.RestLoggingResource
The tests under RestLoggingResource will fail because the ClusteredIT.SERVERS were stopped.

When running the RestLoggingResource alone, it will works