pyuda numpy >2 issue

[NathanCummings]

It seems due to a deprecated numpy function tostring (now called tobytes) which uda uses in pyuda/_structured.py L29 . I rolled numpy back to numpy<2 and that got around it.

[stephen-dixon]

Thanks for highlighting.

tobytes supercedes tostring since numpy 1.19.0 but is available as an alias until 2.2, so this should only break with numpy 2.3+.

We will update all instances of tostring in pyuda to tobytes and update the minimum numpy version in pyproject.toml from 1.7 to 1.19.