chore(deps): update dependency phpunit/phpunit to v12 [security]

Author: renovate[bot]

composer.json

@@ -18,7 +18,7 @@
   "require-dev": {
     "friendsofphp/php-cs-fixer": "^3.0",
     "phpstan/phpstan": "^2.1",
-    "phpunit/phpunit": "^11.5"
+    "phpunit/phpunit": "^12.5.22"
   },
   "autoload": {
     "psr-4": {