fix(esql): refresh keep_alive TTL on async query GET requests

Author: emreyalvac

x-pack/plugin/esql-core/src/main/java/org/elasticsearch/xpack/esql/core/plugin/AbstractTransportQlAsyncGetResultsAction.java

@@ -85,7 +85,7 @@ AsyncResultsService<AsyncTask, StoredAsyncResponse<Response>> createResultsServi
         );
         return new AsyncResultsService<>(
             store,
-            false,
+            true,
             asyncTaskClass,
             (task, listener, timeout) -> AsyncTaskManagementService.addCompletionListener(threadPool, task, listener, timeout),
             transportService.getTaskManager(),