fix compatibility with numpy v2.0

[t-young31]

Resolves #347

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Checklist

• [x] The changes include an associated explanation of how/why
• [x] Test pass
• [x] Documentation has been updated
• [x] Changelog has been updated

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 97.39%. Comparing base (e9cebd6) to head (2ac99fb).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## v1.4.4 #348 +/- ## ======================================= Coverage 97.39% 97.39% ======================================= Files 202 202 Lines 23276 23278 +2 ======================================= + Hits 22670 22672 +2 Misses 606 606 ``` | [Flag](https://app.codecov.io/gh/duartegroup/autodE/pull/348/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=duartegroup) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/duartegroup/autodE/pull/348/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=duartegroup) | `97.39% <100.00%> (+<0.01%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=duartegroup#carryforward-flags-in-the-pull-request-comment) to find out more.

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