ref-iso-week-date: https://en.wikipedia.org/wiki/ISO_week_date

ref1: https://github.com/stedolan/jq/issues/1415 - test failures on macOS 10.12 #1415

ref2: https://stackoverflow.com/questions/62733112/parsing-a-date-string-reliably-in-jq - Parsing a date string reliably in jq