py-sh: updated to 2.0.4

2.0.4 - 5/13/22

- Allow `ok_code` to be used with `fg`
- Make sure `new_group` never creates a new session

2.0.2 / 2.0.3 (misversioned) - 2/13/22

- Performance regression when using a generator with `_in`
- Adding test support for python 3.11

2.0.0 - 2/9/22

- Executed commands now return a unicode string by default
- Removed magical module-like execution contexts
- Added basic asyncio support via `_async`
- Dropped support for Python < 3.8
- Bumped default tty size to more standard (24, 80)
- First argument being a RunningCommand no longer automatically passes it as stdin
- `RunningCommand.__eq__` no longer has the side effect of executing the command
- `_tee` now supports both "err" and "out"
- Removed the builtin override `cd`
- Altered process launching model to behave more expectedly
- Bugfix where `_no_out` isn't allowed with `_iter="err"`
- Allow keyword arguments to have a list of values

(adam)