KANSAS CITY, Mo. — The Chiefs let the Cincinnati Bengals hang around in the AFC Championship Game at Arrowhead Stadium. It cost them. Mahomes was nearly perfect through two quarters but his two interceptions after that doomed the Chiefs’ hopes of reaching a third straight Super Bowl. The Bengals took advantage of those errors with a 24-point run to secure a 27-24 overtime victory over the Chiefs and make it to Super Bowl LVI. The Chiefs and Bengals each owned a half. The Chiefs dominated the first. They raced out to a 21-3 halftime lead behind quarterback Patrick Mahomes’ three touchdown passe…