Update facade docblocks

Author: taylorotwell

src/Illuminate/Support/Facades/Event.php

@@ -6,7 +6,7 @@
 use Illuminate\Support\Testing\Fakes\EventFake;
 
 /**
- * @method static void listen(\Illuminate\Events\QueuedClosure|callable|array|class-string|string $events, \Illuminate\Events\QueuedClosure|callable|array|class-string|null $listener = null)
+ * @method static void listen(\Illuminate\Events\QueuedClosure|callable|array|string $events, \Illuminate\Events\QueuedClosure|callable|array|string|null $listener = null)
  * @method static bool hasListeners(string $eventName)
  * @method static bool hasWildcardListeners(string $eventName)
  * @method static void push(string $event, object|array $payload = [])