build(deps): bump third_party/cores/ariane from 5d6a5b5 to 166c4b8

Bumps [third_party/cores/ariane](https://github.com/pulp-platform/ariane) from `5d6a5b5` to `166c4b8`.
- [Release notes](https://github.com/pulp-platform/ariane/releases)
- [Commits](openhwgroup/cva6@5d6a5b5...166c4b8)

---
updated-dependencies:
- dependency-name: third_party/cores/ariane
  dependency-type: direct:production
...

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