ISSUE-345: test fix

Author: tatevikg1

Diff for: tests/Integration/Controller/SubscriberControllerTest.php

@@ -129,7 +129,7 @@ public function testPostSubscribersWithValidSessionKeyAssignsProvidedSubscriberD
         $email = '[email protected]';
         $jsonData = [
             'email' => $email,
-            'confirmed' => true,
+            'request_confirmation' => true,
             'blacklisted' => true,
             'html_email' => true,
             'disabled' => true,