apply rector rules

src/Bundle/ChillMainBundle/Command/ChillUserSendRenewPasswordCodeCommand.php

@@ -64,17 +64,13 @@ class ChillUserSendRenewPasswordCodeCommand extends Command
 
     /**
      * The current input interface.
-     *
-     * @var InputInterface
      */
-    private $input;
+    private ?\Symfony\Component\Console\Input\InputInterface $input = null;
 
     /**
      * The current output interface.
-     *
-     * @var OutputInterface
      */
-    private $output;
+    private ?\Symfony\Component\Console\Output\OutputInterface $output = null;
 
     public function __construct(
         LoggerInterface $logger,