Bump debruijn from 8d9a5c5 to d6d589b

Bumps [debruijn](https://github.com/10XGenomics/rust-debruijn) from `8d9a5c5` to `d6d589b`.
- [Commits](10XGenomics/rust-debruijn@8d9a5c5...d6d589b)

---
updated-dependencies:
- dependency-name: debruijn
  dependency-type: direct:production
...

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