Bump ahash from 0.8.7 to 0.8.9

Bumps [ahash](https://github.com/tkaitchuck/ahash) from 0.8.7 to 0.8.9.
- [Release notes](https://github.com/tkaitchuck/ahash/releases)
- [Commits](tkaitchuck/aHash@0.8.7...v0.8.9)

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

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