Return `last_affected_row_id` after an insert / update

[avinassh]

from ChrisMills on Discord:

Ensure that after an insert or update, cursor.rowid has the last affected row. This is very useful behavior that avoids the need to make an immediate read to get that id. It's part of the sqlite3 python module that I really like and python users experienced with it are likely to expect libsql has the same feature. I did.

https://discord.com/channels/933071162680958986/1364681822679859362/1366422132757893161