Bump tantivy from 1a9fc10 to bff7c58 in /quickwit

Bumps [tantivy](https://github.com/quickwit-oss/tantivy) from `1a9fc10` to `bff7c58`.
- [Release notes](https://github.com/quickwit-oss/tantivy/releases)
- [Commits](quickwit-oss/tantivy@1a9fc10...bff7c58)

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

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