Allow PHPUnit 10

Author: emodric

composer.json

@@ -34,7 +34,7 @@
         "doctrine/orm": "^2.5",
         "nelmio/alice": "^3.6",
         "phpspec/php-diff": "^1.1",
-        "phpunit/phpunit": "^8.0 || ^9.0",
+        "phpunit/phpunit": "^8.0 || ^9.0 || ^10.0",
         "symfony/browser-kit": "^4.4 || ^5.4 || ^6.0",
         "symfony/finder": "^4.4 || ^5.4 || ^6.0",
         "symfony/framework-bundle": "^4.4 || ^5.4 || ^6.0",