Nissin, one of the world’s largest instant-noodle companies, signed Naomi Osaka to a lucrative deal, but her skin color was lightened and her hair style changed in one of its ads.Credit...Nissin; Lucy Nicholson/Reuters Naomi Osaka, the half-Haitian, half-Japanese tennis champion, is the star of a new Japanese anime-style advertisement. The problem? The cartoon Ms. Osaka bears little resemblance to