All flexible "next cron input" for workflows

[taylordowns2000]

work in progress, will close #4485

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.55%. Comparing base (5d4762c) to head (da3e507).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4529   +/-   ##
=======================================
  Coverage   89.55%   89.55%           
=======================================
  Files         425      425           
  Lines       20307    20307           
=======================================
  Hits        18185    18185           
  Misses       2122     2122           

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