Labthings-picamera2

This includes 18 which updates to the latest version of `labthings-fastapi` and fixes some issues in the tests. `pytest` should now complete successfully.

What's Changed
* Better flat field correction by rwb27 in https://github.com/labthings/labthings-picamera2/pull/7
* Update install instructions by julianstirling in https://github.com/labthings/labthings-picamera2/pull/11
* Set static green equalisation to fix red x by julianstirling in https://github.com/labthings/labthings-picamera2/pull/13
* WIP: CCM as a property by JohemianKnapsody in https://github.com/labthings/labthings-picamera2/pull/8
* Sensor mode control by rwb27 in https://github.com/labthings/labthings-picamera2/pull/9
* Pre dev1 fixes by rwb27 in https://github.com/labthings/labthings-picamera2/pull/17

**Full Changelog**: https://github.com/labthings/labthings-picamera2/commits/v0.0.1-dev1