Bump hosted-git-info from 2.8.8 to 2.8.9 in /tests (#34)

Bumps [hosted-git-info](https://github.com/npm/hosted-git-info) from 2.8.8 to 2.8.9.
- [Release notes](https://github.com/npm/hosted-git-info/releases)
- [Changelog](https://github.com/npm/hosted-git-info/blob/v2.8.9/CHANGELOG.md)
- [Commits](npm/hosted-git-info@v2.8.8...v2.8.9)

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