Create alias coby_(one_piece) -> koby_(one_piece)

BUR #20373 has been approved by @evazion.

create alias coby_(one_piece) -> koby_(one_piece)

https://onepiece.fandom.com/wiki/Koby
https://onepiece.fandom.com/wiki/Koby

This feels like the more common spelling of his name. Especially after watching the official netflix subs for the live action.

It's also spelled with a K in the english chapters published on Viz's site: https://www.viz.com/shonenjump/one-piece-chapter-2/chapter/5091?action=read

The bulk update request #20373 (forum #256460) has been approved by @evazion.