Async-eval

* Fix issue with common variable name. [208](https://github.com/uriyyo/async-eval/issues/208)
* Fix `pypy` compatibility issue. [195](https://github.com/uriyyo/async-eval/issues/195)

* Add python 3.12 support.
* Add `trio` integration. [178](https://github.com/uriyyo/async-eval/pull/178)

* Remove `nest-asyncio` usage. [100 ](https://github.com/uriyyo/async-eval/pull/100)

* Remove `windows` workaround.
* Drop `python 3.6` code.

* Update `nest-asyncio` version.

* Fix issue with missed builtins
* Remove python3.6 workarounds