Revamp this using Stainless like the other SDKs

Hey Cloudflare team,

This PHP SDK is clearly abandoned, with the last commit being from 2 years ago.

I see you now only list Go, Python and TypeScript SDKs as the official ones on your docs, and I also noticed you've been using Stainless for generating those.

Stainless seems to support PHP.

Would there be any chances of getting the PHP version of the SDK generated with Stainless as well since it will likely cover everything in the API and be up to date with PHP versions?

Cheers