Fix the initialization of the phpunit bridge

Author: stof

bootstrap.php

@@ -13,7 +13,7 @@
 use Symfony\Bridge\PhpUnit\DeprecationErrorHandler;
 
 // Skip if we're using PHPUnit >=10
-if (class_exists(PHPUnit\Metadata\Metadata::class, false)) {
+if (class_exists(PHPUnit\Metadata\Metadata::class)) {
     return;
 }