Bump lock_api from 0.4.8 to 0.4.9 in /src/_bcrypt (#423)

Bumps [lock_api](https://github.com/Amanieu/parking_lot) from 0.4.8 to 0.4.9.
- [Release notes](https://github.com/Amanieu/parking_lot/releases)
- [Changelog](https://github.com/Amanieu/parking_lot/blob/master/CHANGELOG.md)
- [Commits](https://github.com/Amanieu/parking_lot/compare/lock_api-0.4.8...lock_api-0.4.9

)

---
updated-dependencies:
- dependency-name: lock_api
  dependency-type: indirect
  update-type: version-update:semver-patch
...

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