build(deps-dev): update friendsofphp/php-cs-fixer requirement (#9)

Updates the requirements on [friendsofphp/php-cs-fixer](https://github.com/PHP-CS-Fixer/PHP-CS-Fixer) to permit the latest version.
- [Release notes](https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/releases)
- [Changelog](https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/blob/master/CHANGELOG.md)
- [Commits](PHP-CS-Fixer/PHP-CS-Fixer@v3.42.0...v3.43.1)

---
updated-dependencies:
- dependency-name: friendsofphp/php-cs-fixer
  dependency-type: direct:development
...

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composer.json

@@ -26,7 +26,7 @@
         }
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "3.42.0",
+        "friendsofphp/php-cs-fixer": "3.43.1",
         "phpunit/phpunit": "10.5.5",
         "rector/rector": "0.18.13",
         "symplify/rule-doc-generator": "12.0.4"