broken CI - numpy 2.0.0?

[peterdudfield]

Describe the bug

The current tests are broken.

https://github.com/openclimatefix/uk-pv-national-gsp-api/actions/runs/9744126472/job/26889085899

Expected behavior

Numpy 2.0.0 was release

Additional context

We could pin back, or try to make the code work for numpy 2.0.0

[peterdudfield]

The solution might just be to bump to latest nowcasting_datamodel version, 1.5.46