Hayao Miyazaki’s Oscar-winning anime The Boy and the Heron floated to an easy second-weekend win at China’s theatrical box office, earning $12.8 million from Friday to Sunday, according to data from Artisan Gateway. The Studio Ghibli blockbuster has now earned $93.8 million in China, with local ticketing app Maoyan projecting that it will soon sail past the $100 million mark. Miyazaki has previously suggested that The Boy and the Heron will be his last feature — but the 82-year-old anime legend has publicly retired twice before, only to eventually return to his drawing table. In any case, Studio Ghibli will continue to be a presence at China’s multiplexes. The fabled company has been steadily rereleasing Miyazaki’s back catalog over recent years. Next up is Howl’s Moving Castle (2004), scheduled for wide release in the country on April 30. Jack Ma’s Alibaba Pictures is also at work on creating an immersive Studio Ghibli exhibition in Shanghai.  Legendary Entertainment and Warner Bros.’ Godzilla vs. Kong: The New Empire continued stomping its way to strong earnings in The Boy and …