Kelly Rowland has no regrets about her heated exchange with security on the Cannes Film Festival red carpet earlier this week, RadarOnline.com has learned. Fans were trying to piece together what transpired when the former Destiny’s Child singer was seen having a tense conversation on Tuesday, making a point with her hand held up sternly in the woman’s face. Rowland, who was dressed in a glamorous Anamika Khanna gown at the star-studded event, was not pleased with the way she was being treated on the Palais des Festivals staircase, sharing her side of the story for the first time in an intervi…