See
https://github.com/zed-industries/async-process/commit/0b6d6713570af61806e1e5cb40e0f757cb93fd9d

Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

Release Notes:

- Fixed orphaned processes being leaked on macOS

---------

Co-authored-by: Jakub Konka <kubkon@jakubkonka.com>