chore(deps-dev): update phpunit/phpunit requirement from ^10.0 to ^11.3

Updates the requirements on [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) to permit the latest version.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/11.3.0/ChangeLog-11.3.md)
- [Commits](sebastianbergmann/phpunit@10.0.0...11.3.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -58,7 +58,7 @@
         "nyholm/symfony-bundle-test": "^3.0",
         "php-parallel-lint/php-var-dump-check": "^0.5",
         "phpstan/phpstan": "^1.8",
-        "phpunit/phpunit": "^10.0",
+        "phpunit/phpunit": "^11.3",
         "rector/rector": "^1.2",
         "symfony/browser-kit": "^7.0",
         "symfony/css-selector": "^7.0",