Build(deps): Bump gitonomy/gitlib from 1.3.7 to 1.3.8 (#2447)

Bumps [gitonomy/gitlib](https://github.com/gitonomy/gitlib) from 1.3.7 to 1.3.8.
- [Release notes](https://github.com/gitonomy/gitlib/releases)
- [Commits](gitonomy/gitlib@v1.3.7...v1.3.8)

---
updated-dependencies:
- dependency-name: gitonomy/gitlib
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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