Add support for HTTPX2

[sk-]

Is your feature request related to a problem? Please describe.

This project's async support currently depends on httpx, which is no longer maintained. Given that situation, it should be migrated away or at the very least add support for a maintained http library. One such option is httpx2 (https://github.com/pydantic/httpx2), which seems to be the accepted community fork of httpx, specially given it's maintained by pydantic. This is even more true, as the author of httpxyz (a previous fork) blessed this new package.

Note that Sentry, already added support for this package in getsentry/sentry-python#6448.

And open telemetry also supports it.

Describe the solution you'd like

No response

Describe alternatives you've considered

No response

Additional context

No response

[xavdid]

Thanks for flagging! I'd been keeping an eye on some of the drama and was waiting for some dust to settle.

We'll probably make that update at some point. In the meantime, you can always write a small subclass of stripe.HTTPClient to use an http lib of your choice until we provide better support.

(filed internally as DEVSDK-3250)