Add logging to failing MonitoringTribeTests (#42485)

This test is failing on RHEL8, additional logging will help track down
the cause.

Relates: #42216, #42210

Author: tvernum

x-pack/qa/tribe-tests-with-license/src/test/java/org/elasticsearch/xpack/monitoring/MonitoringTribeTests.java

@@ -7,13 +7,15 @@
 
 import org.elasticsearch.client.Client;
 import org.elasticsearch.license.TribeTransportTestCase;
+import org.elasticsearch.test.junit.annotations.TestLogging;
 import org.elasticsearch.xpack.core.XPackField;
 import org.elasticsearch.xpack.core.monitoring.action.MonitoringBulkAction;
 import org.elasticsearch.xpack.core.monitoring.action.MonitoringBulkRequest;
 
 import java.util.Collections;
 import java.util.List;
 
+@TestLogging("org.elasticsearch.xpack.core.XPackPlugin:TRACE,org.elasticsearch.xpack.CompositeTestingXPackPlugin:TRACE")
 public class MonitoringTribeTests extends TribeTransportTestCase {
 
     @Override