using new item store

Author: csviri

operator-framework-core/src/main/java/io/javaoperatorsdk/operator/processing/event/source/informer/InformerManager.java

@@ -120,6 +120,7 @@ private InformerWrapper<T> createEventSource(
       FilterWatchListDeletable<T, KubernetesResourceList<T>, Resource<T>> filteredBySelectorClient,
       ResourceEventHandler<T> eventHandler, String namespaceIdentifier) {
     var informer = filteredBySelectorClient.runnableInformer(0);
+    configuration.getItemStore().ifPresent(informer::itemStore);
     var source =
         new InformerWrapper<>(informer, namespaceIdentifier);
     source.addEventHandler(eventHandler);