Update project to Python 3.11

[biblicabeebli]

Creating this issue in reference to

• Upgrade Beiwe Backend platforms to Python 3.11 beiwe-backend#370

Python 3.8 goes out of support in October, Beiwe Backend will be upgrading before that, but can't upgrade until Forest is known to be compatible 3.11. (and I encountered a requirements issue last week when I did some testing on a local environment)

@hackdna Could you please flesh-out this issue with tasks that should be done along with a python platform upgrade?

[hackdna]

I'll be able to work on this some time in April. FWIW, Forest doesn't pin its dependencies (https://github.com/onnela-lab/forest/blob/develop/setup.py) and has a fairly extensive test suite (https://forest.beiwe.org/en/latest/development.html?highlight=pytest#quick-start), so if that passes it's highly likely that there are no major issues.

[hydawo]

@hackdna this sounds great, would you like the RA's to help with Forest testing?

[hackdna]

Yes, and also troubleshooting any errors that may arise.

[hackdna]

@biblicabeebli Forest should be compatible with 3.11 now: #248
Please approve if it looks good to you and I'll merge it into the dev branch.

[biblicabeebli]

Cool. We are going to be stuck for a little bit on 3.8, but the requirements issue I mentioned up at the top was due to a conflict in the old version of Celery, which has been upgraded.

The blocker will be any new Python 3.11 syntax, but running the backend's test suite (which should do the handful of imports that we need) under python 3.8 didn't explode anything.

No objections to merging this into your dev branch, any further complications should be my own fault (I suppose we might encounter new and exciting forest issues but we won't know until we try.)

@GeorgeEfstathiadis @hydawo I'm going to put this build up on the staging data processing server running under 3.8, let's make sure everyone who needs to know knows.