Update friendsofphp/php-cs-fixer requirement from ^3.68 to ^3.69 (#138)

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@v3.68.0...v3.69.0)

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

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Author: dependabot[bot]

composer.json

@@ -20,7 +20,7 @@
         "phpstan/phpstan": "^2.0"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "^3.68",
+        "friendsofphp/php-cs-fixer": "^3.69",
         "nikic/php-parser": "^5.3",
         "phpstan/extension-installer": "^1.4",
         "phpstan/phpstan-deprecation-rules": "^2",