build(deps): bump lock_api from 0.4.2 to 0.4.3
Bumps [lock_api](https://github.com/Amanieu/parking_lot) from 0.4.2 to 0.4.3.
- [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-0.4.2...lock_api-0.4.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>