Log Message:
py-httpx: updated to 0.13.3

0.13.3:

Fixed

* Include missing keepalive expiry configuration.
* Improved error message when URL redirect has a custom scheme.

0.13.2:

Fixed

* Include explicit "Content-Length: 0" on POST, PUT, PATCH if no \ 
request body is used.
* Add `http2` option to `httpx.Client`.
* Tighten up API typing in places.

0.13.1:

Fixed

* Fix pool options deprecation warning.
* Include `httpx.URLLib3ProxyTransport` in top-level API.

0.13.0:

This release switches to `httpcore` for all the internal networking, which means:

* We're using the same codebase for both our sync and async clients.
* HTTP/2 support is now available with the sync client.
* We no longer have a `urllib3` dependency for our sync client, although there \ 
is still an *optional* `URLLib3Transport` class.

It also means we've had to remove our UDS support, since maintaining that would \ 
have meant having to push back our work towards a 1.0 release, which isn't a \ 
trade-off we wanted to make.

We also now have [a public "Transport \ 
API"](https://www.python-httpx.org/advanced/#custom-transports), which you \ 
can use to implement custom transport implementations against. This formalises \ 
and replaces our previously private "Dispatch API".

Changed

* Use `httpcore` for underlying HTTP transport. Drop `urllib3` requirement.
* Rename pool limit options from `soft_limit`/`hard_limit` to \ 
`max_keepalive`/`max_connections`.
* The previous private "Dispatch API" has now been promoted to a \ 
public "Transport API". When customizing the transport use \ 
`transport=...`. The `ASGIDispatch` and `WSGIDispatch` class naming is \ 
deprecated in favour of `ASGITransport` and `WSGITransport`.

Added

* Added `URLLib3Transport` class for optional `urllib3` transport support.
* Streaming multipart uploads.
* Logging via HTTPCORE_LOG_LEVEL and HTTPX_LOG_LEVEL environment variables
and TRACE level logging.

Fixed

* Performance improvement in brotli decoder.
* Proper warning level of deprecation notice in `Response.stream` and `Response.raw`.
* Fix support for generator based WSGI apps.
* Reuse of connections on HTTP/2 in close concurrency situations.
* Honor HTTP/2 max concurrent streams settings
* Fix bytes support in multipart uploads.
* Improve typing support for `files=...`.

Removed

* Dropped support for `Client(uds=...)`