Dependency packages updates for compatibility with PHP 8.4

[matmper]

Description

I’m experiencing issues because the dependencies in this package are outdated and cannot be upgraded properly.

Specifically, I stopped using the agent package because it required mobiledetect/mobiledetectlib at version 2.6, which cannot be updated beyond 2.8 — even though the library is already at version 4.x.

This caused deprecation warnings on my server since older versions are not compatible with PHP 8.4:

Mobile_Detect::construct(): Implicitly marking parameter $headers as nullable is deprecated, 
the explicit nullable type must be used instead in 
/vendor/mobiledetect/mobiledetectlib/Mobile_Detect.php on line 888

Current workaround

I had to stop using your package and instead require mobiledetect/mobiledetectlib directly at version 4.8, which resolves the issue.

Expected behavior

The package should update its dependency constraints to allow installation of the latest stable mobiledetect/mobiledetectlib (>=4.x), ensuring compatibility with PHP 8.4 and avoiding deprecation logs.