Move to numpy 2

[rozyczko]

Numpy 2.0.0rc2 is almost ready for the release.
This version carries a number of API changes which are code breaking.
https://numpy.org/devdocs/numpy_2_0_migration_guide.html

First issue which shows up when trying to run pytest on easyscience is np.cumproduct which is now np.cumpr.
Likely, there are other differences.

The same issue needs propagating to other easyscience dependent modules.

[henrikjacobsenfys]

I played a bit around with ruff, and the only issue it found was that we should replace np.Inf with np.inf

[henrikjacobsenfys]

np.cumproduct is used in pint, and should be fixed in v 0.24. Pint 0.24 requires Python>=3.10.

[henrikjacobsenfys]

Fixed in #94