INDIANAPOLIS— Giannis Antetokounmpo scored an NBA season-high 54 points, but committed two turnovers after Tyrese Haliburton’s go-ahead 3-pointer with 1:29 left and the Indiana Pacers beat the Milwaukee Bucks 126-124 on Thursday night. Haliburton had 29 points and 10 assists and Bennedict Mathurin added 26 points and 11 rebounds for the Pacers, who blew an