Update PolicyEngine US to 1.691.2

[policyengine]

Summary

Update PolicyEngine US from 1.690.7 to 1.691.2.

What changed (1.690.7 -> 1.691.2)

Added

• Add Washington Senior Citizens and Disabled Persons Property Tax Exemption Program, including ESSB 6162 (2026) provisions effective for taxes levied for collection in 2027 and thereafter.

Changed

• Support legacy per-fuel expense inputs as fallbacks in DC, MA, and IL LIHEAP formulas.

Fixed

• Updated the Maine Sales Tax Fairness Credit base amount and phase-out start for 2025.

---

Generated automatically by GitHub Actions

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.83%. Comparing base (1fd9618) to head (8a3cb0e).
⚠️ Report is 6 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3572      +/-   ##
==========================================
+ Coverage   77.81%   77.83%   +0.01%     
==========================================
  Files          65       65              
  Lines        3877     3880       +3     
  Branches      697      698       +1     
==========================================
+ Hits         3017     3020       +3     
  Misses        683      683              
  Partials      177      177              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.