Update dependency phpunit/phpunit to v12

Author: renovate[bot]

composer.json

@@ -52,7 +52,7 @@
         "phpstan/phpstan-phpunit": "^1.0",
         "phpstan/phpstan-strict-rules": "^1.0",
         "phpstan/phpstan-symfony": "^1.0",
-        "phpunit/phpunit": "^10.0",
+        "phpunit/phpunit": "^12.0",
         "rector/rector": "^1.0",
         "symfony/http-client": "^6.0"
     },