Bumps [hashbrown](https://github.com/Amanieu/hashbrown) from 0.1.8 to 0.2.0. - [Release notes](https://github.com/Amanieu/hashbrown/releases) - [Changelog](https://github.com/Amanieu/hashbrown/blob/master/CHANGELOG.md) - [Commits](https://github.com/Amanieu/hashbrown/compare/v0.1.8...v0.2.0) Signed-off-by: dependabot[bot] <support@dependabot.com>