testing

[lheagy]

we don't need to be testing on all versions of python from 3.7 to 3.10. We could test just the lowest / highest that we support. It would be nice to also break the tests so that we can be running some of the notebook tests in parallel

[jcapriot]

I don’t remember how long the actual tests notebooks take to run, but I know it takes a decent amount of the time is spent to setup the environment, (could likely be sped up by switching it to use mamba instead of conda)