Update hashbrown requirement from 0.2.2 to 0.3.0
Update hashbrown requirement from 0.2.2 to 0.3.0

Updates the requirements on [hashbrown](https://github.com/Amanieu/hashbrown) to permit the latest version.
- [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/v0.2.2...v0.3.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
spacejam/sled,spacejam/sled,spacejam/sled