Hachette Book Group said it will not be publishing a novel called “Shy Girl” over concerns that artificial intelligence was used to generate the text. The novel was scheduled to be published in the United States this spring. Hachette said it will also discontinue the book in the United Kingdom, where it’s already available. Although the publisher claimed the decision came after a thorough review of the text, reviewers on GoodReads and YouTube had been speculating that the book was likely AI-generated. And The New York Times said it asked Hachette about the “Shy Girl” concerns the day before the announcement.…