Add auth support in turso dev

[avinassh]

Right now, turso dev starts without any auth. libsql-server has an option of using JWT token file. So, we need to take the file path in turso dev and pass that as an option when starting libsql-server

e.g.:

turso dev --auth-jwt-key-file file.pem

requested here: https://discord.com/channels/933071162680958986/1185564578965364848/1185564578965364848