regularizePSF 0.3.1 requires Python>=3.10

[sapols]

I noticed for a few days in a row our GitHub Actions was trying to update regularizePSF from 0.2.3 to 0.3.1, but then the pip install kept grabbing 0.2.3, causing the cycle to repeat the following night.

0.2.3 was their last version to allow Python 3.9, and since this env is still on 3.9, pip install regularizePSF gets 0.2.3 rather than 0.3.1.

Marcus thinks he can drop that requirement back down to 3.9 for our sake. But we should move to 3.10 sooner than later (especially since Scientific Python recommends dropping support for 3.9 already).

[sapols]

UPDATE: Marcus said his CI passed in 3.9, so regularizePSF 0.3.2 will be released soon supporting Python 3.9 again.

Our pipeline should pick that up, so looks like the problem is resolving with no changes to this codebase.