Bump hyper from 0.13.7 to 0.13.8 in /oak_loader (#1499)
Bump hyper from 0.13.7 to 0.13.8 in /oak_loader (#1499)

Bumps [hyper](https://github.com/hyperium/hyper) from 0.13.7 to 0.13.8.
- [Release notes](https://github.com/hyperium/hyper/releases)
- [Changelog](https://github.com/hyperium/hyper/blob/master/CHANGELOG.md)
- [Commits](https://github.com/hyperium/hyper/compare/v0.13.7...v0.13.8)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
project-oak/oak,project-oak/oak,project-oak/oak,project-oak/oak,project-oak/oak,project-oak/oak,project-oak/oak