f387776985
This patch uses `wait_for2` package to implement `asyncio.wait_for()` for Python < 3.12. In Python 3.12, `asyncio.wait_for()` is implemented in terms of `asyncio.timeout()` which fixed a bunch of issues. However, this was never backported (because of the lack of `async.timeout()`) and there are still many remainig issues, specially in Python 3.10, in `async.wait_for()`. See https://github.com/python/cpython/pull/98518