Summary

This release contains lots of internal changes and refactors. They are being released on their own without any other features to make solving any potential bugs easier.

Pull Requests

• Update to python 3.9 (#828)
• Issue/#773 refactor database wrapper to use sqlalchemy engine instead of aiomysql (#827)

Full Changelog: https://github.com/FAForever/server/compare/v1.11.0...v1.11.1