update stat with optimistic locking

Author: csviri

sample-operators/leader-election/src/main/java/io/javaoperatorsdk/operator/sample/LeaderElectionTestReconciler.java

@@ -27,8 +27,8 @@ public UpdateControl<LeaderElectionTestCustomResource> reconcile(
     }
 
     resource.getStatus().getReconciledBy().add(reconcilerName);
-
-    return UpdateControl.patchStatus(resource).rescheduleAfter(Duration.ofSeconds(1));
+    // update status is with optimistic locking
+    return UpdateControl.updateStatus(resource).rescheduleAfter(Duration.ofSeconds(1));
   }
 
 }