Log Message:
py-httpx: updated to 0.23.1

0.23.1

Added

* Support for Python 3.11.
* Allow setting an explicit multipart boundary in `Content-Type` header.
* Allow `tuple` or `list` for multipart values, not just `list`.
* Allow `str` content for multipart upload files.
* Support connection upgrades. See \ 
https://www.encode.io/httpcore/extensions/#upgrade-requests

Fixed

* Don't drop empty query parameters.

Removed

* Drop `.read`/`.aread` from `SyncByteStream`/`AsyncByteStream`.
* Drop `RawURL`.