Rename to Henry's Law

[mattldawson]

This PR updates the naming of Henry's Law code to include the "s", consistent with recent updates to MIAM

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.08%. Comparing base (9ca3910) to head (4b379ae).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #304   +/-   ##
=======================================
  Coverage   88.08%   88.08%           
=======================================
  Files          44       44           
  Lines        2442     2442           
=======================================
  Hits         2151     2151           
  Misses        291      291           

Files with missing lines	Coverage Δ
src/v1/aerosol/parsers.cpp	84.97% <100.00%> (ø)
src/v1/aerosol/schema.cpp	77.77% <100.00%> (ø)
src/validate.cpp	90.67% <100.00%> (ø)

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