feat: sql language by default on clients

Summary

set sql language by default on clients

Ensure that

• New code is covered by tests
• API is documented
• Changelog is up to date
• (if Lua API changed) Lua API version is bumped in luamod.rs
• (if necessary) A follow-up doc issue is created in picodata/docs and linked here

assigned to @kusancho

approved this merge request

changed milestone to %Picodata 24.2 — Замечания ФСТЭК

changed milestone to %Picodata 24.1 — CLI UX

merged