Ask Hjorth Larsen requested to merge scipy-deprecation-fix into master Feb 21, 2024

Fix deprecation warning as scipy.integrate.cumtrapz was renamed to cumulative_trapezoid

Checklist

I am familiar with ASE's contribution guidelines.
Doc strings in code changed in this MR are up to date.
Unit tests have been added for new or changed code.
Issue is resolved via "closes #XXXX" if applicable.