build(deps-dev): bump phpunit/phpunit from 11.5.50 to 12.5.22

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 11.5.50 to 12.5.22.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/12.5.22/ChangeLog-12.5.md)
- [Commits](sebastianbergmann/phpunit@11.5.50...12.5.22)

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-version: 12.5.22
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

composer.json

@@ -37,7 +37,7 @@
   "require-dev": {
     "friendsofphp/php-cs-fixer": "^3.75",
     "justinrainbow/json-schema": "^6.0",
-    "phpunit/phpunit": "^11.0",
+    "phpunit/phpunit": "^12.5",
     "symfony/browser-kit": "^8.0",
     "symfony/css-selector": "^8.0",
     "symfony/http-client": "^8.0",