chore(deps): bump ghauth from 6.0.13 to 6.0.19 (#1021)

Bumps [ghauth](https://github.com/rvagg/ghauth) from 6.0.13 to 6.0.19.
- [Release notes](https://github.com/rvagg/ghauth/releases)
- [Changelog](https://github.com/rvagg/ghauth/blob/master/CHANGELOG.md)
- [Commits](rvagg/ghauth@v6.0.13...v6.0.19)

---
updated-dependencies:
- dependency-name: ghauth
  dependency-version: 6.0.19
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]