Back to the flyweight division for the first time since July 2020, when she forced Paige VanZant to tap in less than three minutes in Abu Dhabi, Amanda Ribas foresees another perfect night inside the octagon Saturday, when she faces Katlyn Chookagian at UFC Vegas 54. Ribas was expected to meet Michelle Waterson in a strawweight contest in March, but was left without a dance partner after “The Karate Hottie” was sidelined with health issues. Ribas admits she was “upset,” especially since the top of the 115-pound class was already busy. Presented with a chance to face No. 1 ranked…