chore(deps): update dependency phpunit/phpunit to v12

Author: renovate[bot]

php/composer.json

@@ -10,7 +10,7 @@
     },
     "require-dev": {
         "vimeo/psalm": "^5.5",
-        "phpunit/phpunit": "^10.3||^11.0",
+        "phpunit/phpunit": "12.0.2",
         "psalm/plugin-phpunit": "^0.19.0",
         "friendsofphp/php-cs-fixer": "^3.5",
         "ramsey/uuid": "^4.5.0"