ZZZ character rename: Sigrid

BUR #61461 has been rejected.

rename sigrid_(zenless_zone_zero) -> sigrid_de_l'azur

Revealed as the character's full name:
https://x.com/ZZZ_EN/status/2068183308924600793
https://x.com/ZZZ_EN/status/2068182049517719712

This should probably be an alias instead so that "sigrid_zenless" will show this character in autocomplete.

BUR #61462 has been approved by @Hillside_Moose.

create alias sigrid_(zenless_zone_zero) -> sigrid_de_l'azur

Per WRS suggestion, alias instead of a rename

The bulk update request #61461 (forum #450714) has been rejected by @Hillside_Moose.

The bulk update request #61462 (forum #450716) has been approved by @Hillside_Moose.