Pylitterbot

Handle API errors when no "developerMessage" is present

**Full Changelog**: https://github.com/natekspencer/pylitterbot/compare/2021.11.0...2021.12.0

What's Changed
* Remove deprecated properties and classes
* Change return type of robot set commands


**Full Changelog**: https://github.com/natekspencer/pylitterbot/compare/2021.10.1...2021.11.0

Hand ReadTimeout gracefully

Update Authlib and httpx minimum versions and remove patch for Authlib<0.15.5

Add ability to disconnect from the API

Fix for stricter client style enforcement in httpx==0.19.0