Bump lancedb from 0.17.0 to 0.21.2

Bumps [lancedb](https://github.com/lancedb/lancedb) from 0.17.0 to 0.21.2.
- [Release notes](https://github.com/lancedb/lancedb/releases)
- [Changelog](https://github.com/lancedb/lancedb/blob/main/release_process.md)
- [Commits](lancedb/lancedb@v0.17.0...python-v0.21.2)

---
updated-dependencies:
- dependency-name: lancedb
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]