NEWYou can now listen to Fox News articles! A columnist took a victory lap Tuesday as The Washington Post was ordered to give her back pay after she challenged her firing last year.”POV: Channeling my inner Rihanna because I won my case against the @washingtonpost — and they owe me a year’s worth of back pay,” Karen Attiah wrote on X while sharing a video of her dancing to a Rihanna song.In August, an arbitrator ordered the Post to reinstate her employment and give her back pay, saying the paper “did not have good and sufficient cause” and that it…