PCA plotting is broken w/ numpy > 2.0

[isaacovercast]

In a new clean install if you force numpy=1.26.4 (last v1.x version) the pca.draw() works fine:

If you don't constrain the numpy version and you get >=2.0 then the pca.draw() fails:

Not sure why yet

[isaacovercast]

Ok, it's actually coming from toyplot (#213). The PR has more info. It looks like toyplot updated the major version to 2.0 (from 1.0.4) a couple months ago, during a bunch of work on the numpy 2.0 support, but the conda package is still at 1.0.3

Started a discussion on their forum.