Install mosdef packages from source in dev environment.

[chrisjonesBSU]

This follows the same behavior we added in mbuild/gmso/foyer, and fixes the bleeding edge test.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.32%. Comparing base (65eebd5) to head (be92aa3).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #49   +/-   ##
=======================================
  Coverage   89.32%   89.32%           
=======================================
  Files          12       12           
  Lines        1358     1358           
=======================================
  Hits         1213     1213           
  Misses        145      145           

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