Make WIC monthly

[hua7450]

Fixes #3689

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.11%. Comparing base (b2902a3) to head (988f27c).
Report is 329 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #6027    +/-   ##
========================================
  Coverage   99.11%   99.11%            
========================================
  Files        2822     2840    +18     
  Lines       40813    41063   +250     
  Branches      191      194     +3     
========================================
+ Hits        40450    40700   +250     
  Misses        328      328            
  Partials       35       35            

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[MaxGhenis]

Pausing to check with @PavelMakarchuk and @anth-volk whether this changes how API customers would receive the results, in case we need to alert them

[PavelMakarchuk]

@MaxGhenis this should not affect HH API users - should be ready for review