Bug: type reported for an early-warning localization

Any skymap from an early-warning G event is being described in the circular template as "an updated localization". It should be described as "an early-warning localization", of course. Examples: https://gracedb-playground.ligo.org/api/superevents/S230515kz/files/preliminary-circular.txt and https://gracedb-playground.ligo.org/api/superevents/S230516c/files/preliminary-circular.txt