Just don't install espaloma charge

[IAlibay]

Fixes #762

This will lower coverage a bit, but at least we won't have a failing CI.

Checklist

• Added a news entry

Developers certificate of origin

• I certify that this contribution is covered by the MIT License here and the Developer Certificate of Origin at https://developercertificate.org/.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.76%. Comparing base (afdffb1) to head (6c71585).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #763      +/-   ##
==========================================
- Coverage   93.62%   91.76%   -1.87%     
==========================================
  Files         133      133              
  Lines        9747     9747              
==========================================
- Hits         9126     8944     -182     
- Misses        621      803     +182     

Flag	Coverage Δ
fast-tests	91.76% <ø> (?)
slow-tests	?

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