Fix: compatibility with phpunit 9.3

Author: Gennadi Janzen

Legacy/CommandForV9.php

@@ -12,9 +12,11 @@
 namespace Symfony\Bridge\PhpUnit\Legacy;
 
 use PHPUnit\TextUI\Command as BaseCommand;
-use PHPUnit\TextUI\Configuration\Configuration;
+use PHPUnit\TextUI\Configuration\Configuration as LegacyConfiguration;
 use PHPUnit\TextUI\Configuration\Registry;
 use PHPUnit\TextUI\TestRunner as BaseRunner;
+use PHPUnit\TextUI\XmlConfiguration\Configuration;
+use PHPUnit\TextUI\XmlConfiguration\Loader;
 use Symfony\Bridge\PhpUnit\SymfonyTestsListener;
 
 /**
@@ -43,9 +45,13 @@ protected function createRunner(): BaseRunner
 
         if (isset($this->arguments['configuration'])) {
             $configuration = $this->arguments['configuration'];
-            if (!$configuration instanceof Configuration) {
+
+            if (!class_exists(Configuration::class) && !$configuration instanceof LegacyConfiguration) {
                 $configuration = Registry::getInstance()->get($this->arguments['configuration']);
+            } elseif (class_exists(Configuration::class) && !$configuration instanceof Configuration) {
+                $configuration = (new Loader())->load($this->arguments['configuration']);
             }
+
             foreach ($configuration->listeners() as $registeredListener) {
                 if ('Symfony\Bridge\PhpUnit\SymfonyTestsListener' === ltrim($registeredListener->className(), '\\')) {
                     $registeredLocally = true;