build(deps): bump hyper from 0.13.8 to 0.13.9 (#81)

Bumps [hyper](https://github.com/hyperium/hyper) from 0.13.8 to 0.13.9.
- [Release notes](https://github.com/hyperium/hyper/releases)
- [Changelog](https://github.com/hyperium/hyper/blob/master/CHANGELOG.md)
- [Commits](hyperium/hyper@v0.13.8...v0.13.9)

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Author: dependabot-preview[bot]