Upgrade FlatBuffers from 24.3.25 to 25.2.10 #7235
Description
OSRM currently uses FlatBuffers 24.3.25 (released March 2024) while the latest version is 25.2.10 (released February 2025). Upgrading would potentially provide several benefits:
- Enhanced C++ string handling with string_view support in LookUpByKey functions for better performance
- Fixed JavaScript/TypeScript object API handling of null-default scalars
- Accumulated bug fixes and stability improvements in verifier and type checking
- Better JSON support for advanced union features
Admittedly, I have not found any LookUpByKey usages in the project, but the upgrade would be easy to implement.