READY TO CELEBRATE — Kennywood Park is preparing for its annual celebration of Holiday Lights. — Contributed WEST MIFFLIN, Pa. — With three months to go until Santa makes his annual flight, crews at Kennywood are already busy preparing the park for Holiday Lights. The popular holiday spectacular returns this winter, bigger and brighter for its 10th anniversary season. Holiday Lights begins on Nov. 20 and will add 24 days to the 2021 season and longer nights under the lights to celebrate than ever before. The holiday season starts at Kennywood with a special preview night just for passholders on Nov. 19. The holiday extravaganza continues…