Avoid deprecation messages when sending an email with PHP 8.2

Fixes #5225

libs/swiftmailer/classes/Swift/MailTransport.php

@@ -25,7 +25,7 @@ class Swift_MailTransport extends Swift_Transport_MailTransport
     public function __construct($extraParams = '-f%s')
     {
         call_user_func_array(
-            array($this, 'Swift_Transport_MailTransport::__construct'),
+            'Swift_Transport_MailTransport::__construct',
             Swift_DependencyContainer::getInstance()
                 ->createDependenciesFor('transport.mail')
             );