Update PolicyEngine US to 1.398.0

[nikhilwoodruff]

Update PolicyEngine US to 1.398.0

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.38%. Comparing base (9a768bf) to head (fb50347).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2782      +/-   ##
==========================================
- Coverage   80.56%   80.38%   -0.19%     
==========================================
  Files          49       49              
  Lines        1616     1616              
  Branches      209      209              
==========================================
- Hits         1302     1299       -3     
- Misses        265      266       +1     
- Partials       49       51       +2     

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