chore(deps): bump slug from 0.1.5 to 0.1.6

Bumps [slug](https://github.com/Stebalien/slug-rs) from 0.1.5 to 0.1.6.
- [Commits](Stebalien/slug-rs@v0.1.5...v0.1.6)

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

Signed-off-by: dependabot[bot] <[email protected]>