Update neos/utility-files requirement from ^7.3.10 to ^8.3.9

Updates the requirements on [neos/utility-files](https://github.com/neos/utility-files) to permit the latest version.
- [Commits](neos/utility-files@7.3.10...8.3.9)

---
updated-dependencies:
- dependency-name: neos/utility-files
  dependency-type: direct:production
...

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

composer.json

@@ -13,7 +13,7 @@
         "guzzlehttp/guzzle": "^6.0 || ^7.0",
         "monolog/monolog": "^2.9.1",
         "myclabs/php-enum": "^1.8",
-        "neos/utility-files": "^7.3.10",
+        "neos/utility-files": "^8.3.9",
         "symfony/config": "^5.0 || ^6.0",
         "symfony/console": "^5.0 || ^6.0",
         "symfony/dependency-injection": "^5.0 || ^6.0",