Add logging to catch source of error (#136010)

Author: jfreden

x-pack/plugin/security/qa/microsoft-graph-authz-tests/src/javaRestTest/java/org/elasticsearch/xpack/security/authz/microsoft/MicrosoftGraphAuthzPluginIT.java

@@ -122,6 +122,7 @@ private static ElasticsearchCluster initTestCluster() {
             .setting("xpack.security.authc.realms.microsoft_graph.microsoft_graph1.client_id", CLIENT_ID)
             .keystore("xpack.security.authc.realms.microsoft_graph.microsoft_graph1.client_secret", CLIENT_SECRET)
             .setting("xpack.security.authc.realms.microsoft_graph.microsoft_graph1.tenant_id", TENANT_ID)
+            .setting("logger.org.elasticsearch.xpack.security.authc", "DEBUG")
             .setting("logger.org.elasticsearch.xpack.security.authz.microsoft", "TRACE")
             .setting("logger.com.microsoft", "TRACE")
             .setting("logger.com.azure", "TRACE");