Re-add tox environments - #248

To put it simply: Why would we need CI to test on all of these environments? Just the oldest, the latest and pypy (which happens to be in the middle) would be enough. See 2bd1536. Having so much wastes a lot of actions runtime. Or do you mean to make us only test these when we’re locally testing and not in actions?

I wrote "They do not cause CI to test them all."

Also look at the CI for this PR.

I apologize, I misread that. However, you don't need these to allow testing. I can do tox -e py311 on my machine without that in the envlist. I'm pretty sure the envlist is only for the list of environments to run when you just do tox alone.

Yes, you can run these envs without them being specified, however this list indicates which ones are supported, and they all should be run if testing all supported environments locally.