Update SuccessResponse.php

Author: andrii-pukhalevych

src/Responses/SuccessResponse.php

@@ -23,7 +23,7 @@ public function __construct($headers, $body, $http_code, callable $success_callb
         parent::__construct($headers, $body, $http_code);
 
         if ($success_callback) {
-            call_user_func($success_callback);
+            call_user_func($success_callback, $this);
         }
     }
 }