Fixed Failed event

Thank you very much Laravel for not pointing out the changes to be made when upgrading from 5.6 to 5.7

Author: zKoz210

app/Http/Controllers/Auth/LoginController.php

@@ -242,6 +242,6 @@ private function getField(string $input = null): string
      */
     private function fireFailedLoginEvent(Authenticatable $user = null, array $credentials = [])
     {
-        event(new Failed($user, $credentials));
+        event(new Failed(config('auth.defaults.guard'), $user, $credentials));
     }
 }