ESQL: Log more on GenerativeIt failure (#134742)

Let's get some more information about `GenerativeIt` failures.

Relates to #133794

Author: nik9000

x-pack/plugin/esql/qa/server/multi-node/src/javaRestTest/java/org/elasticsearch/xpack/esql/qa/multi_node/GenerativeIT.java

@@ -11,6 +11,7 @@
 
 import org.elasticsearch.test.TestClustersThreadFilter;
 import org.elasticsearch.test.cluster.ElasticsearchCluster;
+import org.elasticsearch.test.junit.annotations.TestLogging;
 import org.elasticsearch.xpack.esql.qa.rest.generative.GenerativeRestTest;
 import org.junit.ClassRule;
 
@@ -26,6 +27,7 @@
  * </ul>
  */
 @ThreadLeakFilters(filters = TestClustersThreadFilter.class)
+@TestLogging(value = "org.elasticsearch.xpack.esql.plugin.ComputeService", reason = "see plans on failure")
 public class GenerativeIT extends GenerativeRestTest {
     @ClassRule
     public static ElasticsearchCluster cluster = Clusters.testCluster(spec -> spec.plugin("inference-service-test"));

x-pack/plugin/esql/qa/server/single-node/src/javaRestTest/java/org/elasticsearch/xpack/esql/qa/single_node/GenerativeIT.java

@@ -11,6 +11,7 @@
 
 import org.elasticsearch.test.TestClustersThreadFilter;
 import org.elasticsearch.test.cluster.ElasticsearchCluster;
+import org.elasticsearch.test.junit.annotations.TestLogging;
 import org.elasticsearch.xpack.esql.qa.rest.generative.GenerativeRestTest;
 import org.junit.ClassRule;
 
@@ -26,6 +27,7 @@
  * </ul>
  */
 @ThreadLeakFilters(filters = TestClustersThreadFilter.class)
+@TestLogging(value = "org.elasticsearch.xpack.esql.plugin.ComputeService", reason = "see plans on failure")
 public class GenerativeIT extends GenerativeRestTest {
     @ClassRule
     public static ElasticsearchCluster cluster = Clusters.testCluster();