fix EventDispatcher is not returning $event object

src/EventDispatcher/EventDispatcher.php

@@ -6,7 +6,7 @@
 use Psr\EventDispatcher\EventDispatcherInterface;
 
 /**
- * Laravel does not have a built service for Psr\EventDispatcher\EventDispatcherInterface.
+ * Laravel does not have a built-in service for \Psr\EventDispatcher\EventDispatcherInterface.
  * So we are implemented our own.
  */
 class EventDispatcher implements EventDispatcherInterface
@@ -17,5 +17,7 @@ class EventDispatcher implements EventDispatcherInterface
     public function dispatch(object $event)
     {
         Event::dispatch($event);
+
+        return $event;
     }
 }