refactor: date validation code

[mcmcgrath13]

PULL REQUEST

Summary

Refactor date validation code to be more reusable

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.67%. Comparing base (db059c3) to head (bea3bc8).

Additional details and impacted files

@@                             Coverage Diff                              @@
##           mcm/angela/2753-filter-by-date-p2-params    #3139      +/-   ##
============================================================================
- Coverage                                     89.08%   85.67%   -3.42%     
============================================================================
  Files                                            82       25      -57     
  Lines                                          4297     1424    -2873     
  Branches                                        745        0     -745     
============================================================================
- Hits                                           3828     1220    -2608     
+ Misses                                          449      204     -245     
+ Partials                                         20        0      -20     

Flag	Coverage Δ
ecr-viewer	?
orchestration	85.67% <ø> (ø)

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see 57 files with indirect coverage changes