Update libsql libraries to libsql-0.9.16 (#72)

This PR updates the libsql static libraries to version `libsql-0.9.16`.

Libraries updated:
- `linux_amd64/libsql_experimental.a`
- `linux_arm64/libsql_experimental.a`
- `darwin_arm64/libsql_experimental.a`

This update was generated automatically by the [update-libsql
workflow](https://github.com/tursodatabase/go-libsql/actions/runs/16312770011).

Author: penberg