tools(deps-dev): update friendsofphp/php-cs-fixer requirement (#120)

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@v3.14.3...v3.14.4)

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

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Author: dependabot[bot]

tools/php-cs-fixer/composer.json

@@ -3,7 +3,7 @@
     "description": "php-cs-fixer",
     "type": "metapackage",
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "3.14.3",
+        "friendsofphp/php-cs-fixer": "3.14.4",
         "roave/security-advisories": "dev-latest"
     },
     "prefer-stable": true,