chore: Update DiskANN submodule to latest with graph partition tools

- Update DiskANN submodule to commit b2dc4ea
- Includes graph partition tools and CMake integration
- Enables graph partitioning functionality in DiskANN backend
This commit is contained in:
yichuan520030910320
2025-08-05 23:14:19 -07:00
parent 77d7b60a61
commit 669e622430