fix: move to appwrite/base 2.2.9 - #14

The one-line base image bump keeps the extensions the app needs (maxminddb for MaxMind\Db\Reader, swoole) and the app references no opentelemetry code, so nothing in the repo breaks.

Bumps the runtime stage of the Dockerfile from appwrite/base:1.1.1 to appwrite/base:2.2.9. The application code and build stages are unchanged.