Fix typed arguments in call to api_mail_html function

Author: AngelFQC

public/main/inc/lib/usermanager.lib.php

@@ -517,9 +517,9 @@ public static function create_user(
                             $emailBody,
                             $sender_name,
                             $email_admin,
-                            null,
-                            null,
-                            null,
+                            [],
+                            [],
+                            false,
                             [],
                             $creatorEmail
                         );