[TEST] Add refresh to make sure watch record is in the index before checking the mappings.

Original commit: elastic/x-pack-elasticsearch@bd9b266af1

src/test/java/org/elasticsearch/watcher/test/integration/HistoryTemplateTimeMappingsTests.java

@@ -57,7 +57,7 @@ public class HistoryTemplateTimeMappingsTests extends AbstractWatcherIntegration
 
         // the action should fail as no email server is available
         assertWatchWithMinimumActionsCount("_id", WatchRecord.State.EXECUTED, 1);
-
+        refresh();
         GetMappingsResponse mappingsResponse = client().admin().indices().prepareGetMappings().get();
         assertThat(mappingsResponse, notNullValue());
         assertThat(mappingsResponse.getMappings().isEmpty(), is(false));