fix: sync MySQL and SQLite codegen requests with withCancellationToken option

The withCancellationToken option was added to serialized plugin options,
but only the Postgres request.message fixtures were regenerated. Regenerate
the MySQL and SQLite ones so the codegen sync check passes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: ballistic-booger