Release v4.167.0

Added

• The canonical corpus publishes the reference clock's schedule behavior as a versioned JSON fixture, clock-schedules.v1.json: the rules for epoch-counted intervals and daily, weekly and monthly UTC schedules, and boundary vectors with their expected due instants, including starts before the epoch, offset normalization, months without a 31st, 29 February in leap and non-leap years, the last calendar day and the occurrence limit (#754)
• ClockScheduleVectors in Cratis.Screenplay.CanonicalCorpus exposes the fixture bytes with its version and SHA-256, so a consumer can pin it by hash; the file can also be fetched from the repository at the release tag (#754)