fix: revert tree-sitter grammar versions to actual latest

0.25.x versions have not been published for: tree-sitter-c, c-sharp,
cpp, java, php, ruby, rust, scala, or typescript. Revert those to the
latest available (0.23.x or 0.24.x).

The version mismatch with web-tree-sitter@0.26.5 remains a known issue.
It can be addressed when upstream grammar packages publish 0.25.x
compatible WASM builds.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>