Upgrade framework

vendor/sebastian/object-enumerator/src/Exception.php

@@ -1,15 +1,16 @@
-<?php
+<?php declare(strict_types=1);
 /*
- * This file is part of Object Enumerator.
+ * This file is part of sebastian/object-enumerator.
  *
  * (c) Sebastian Bergmann <sebastian@phpunit.de>
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
  */
-
 namespace SebastianBergmann\ObjectEnumerator;
 
-interface Exception
+use Throwable;
+
+interface Exception extends Throwable
 {
 }