RECIFE, Brazil—USA Basketball won’t repeat as AmeriCup champions. Gabriel Deck scored 30 points, Nicolás Laprovittola added 18 and Argentina topped the U.S. 82–73 in the semifinals on Saturday. It was a rematch of the gold-medal game from the most recent AmeriCup tournament in 2017, a game where the U.S. prevailed. Not this time, not after…