Use Symfony5 class names in connectors

#5532

Author: Naktibalda

src/Codeception/Module/REST.php

@@ -82,7 +82,7 @@ class REST extends CodeceptionModule implements DependsOnModule, PartedModule, A
     protected $DEFAULT_SHORTEN_VALUE = 150;
 
     /**
-     * @var \Symfony\Component\HttpKernel\Client|\Symfony\Component\BrowserKit\Client
+     * @var \Symfony\Component\HttpKernel\HttpKernelBrowser|\Symfony\Component\BrowserKit\AbstractBrowser
      */
     public $client = null;
     public $isFunctional = false;