Fixing energy minimization tests

[chrisiacovella]

PR Summary:

energy minimization checks are now failing on ubuntu. This PR is focused on trying to identify the issue.

PR Checklist

---

• Includes appropriate unit test(s)
• Appropriate docstring(s) are added/updated
• Code is (approximately) PEP8 compliant
• Issue(s) raised/addressed?

[chrisiacovella]

The issue with the energy minimization tests seems related to converting the list of constraints to numpy arrays, in order to get their shape. Specifying "dtype=object" when converting to an np array fixes the issues.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.49%. Comparing base (c752cd1) to head (3f9058c).
Report is 134 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #1076       +/-   ##
===========================================
+ Coverage   78.21%   90.49%   +12.28%     
===========================================
  Files          57       61        +4     
  Lines        5513     6157      +644     
===========================================
+ Hits         4312     5572     +1260     
+ Misses       1201      585      -616     

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[daico007]

LGTM!