Update mobiledetect/mobiledetectlib requirement from 2.8.32 to 2.8.x-dev

Updates the requirements on [mobiledetect/mobiledetectlib](https://github.com/serbanghita/Mobile-Detect) to permit the latest version.
- [Release notes](https://github.com/serbanghita/Mobile-Detect/releases)
- [Changelog](https://github.com/serbanghita/Mobile-Detect/blob/4.8.x/CHANGELOG.md)
- [Commits](https://github.com/serbanghita/Mobile-Detect/commits)

---
updated-dependencies:
- dependency-name: mobiledetect/mobiledetectlib
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -48,7 +48,7 @@
         "stevebauman/location": "^6.6",
         "symfony/console": "^5.4|^6.0",
         "symfony/finder": "^6.0",
-        "mobiledetect/mobiledetectlib": "2.8.32",
+        "mobiledetect/mobiledetectlib": "2.8.x-dev",
         "react/http": "1.9.0"
     },
     "require-dev": {