Added NullDisableEventDispatcher to disable event dispatcher by default. (#4852)

Co-authored-by: huangdijia <huangdijia@gmail.com>

Author: limingxinleo

src/DisableEventDispatcher.php

@@ -18,7 +18,7 @@
 
 trait DisableEventDispatcher
 {
-    public function addDisableDispatcherOption()
+    public function addDisableDispatcherOption(): void
     {
         $this->addOption('disable-event-dispatcher', null, InputOption::VALUE_NONE, 'Whether disable event dispatcher.');
     }

src/NullDisableEventDispatcher.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of Hyperf.
+ *
+ * @link     https://www.hyperf.io
+ * @document https://hyperf.wiki
+ * @contact  group@hyperf.io
+ * @license  https://github.com/hyperf/hyperf/blob/master/LICENSE
+ */
+namespace Hyperf\Command;
+
+use Symfony\Component\Console\Input\InputInterface;
+
+trait NullDisableEventDispatcher
+{
+    public function addDisableDispatcherOption(): void
+    {
+    }
+
+    public function disableDispatcher(InputInterface $input)
+    {
+    }
+}