Ear we go again.  In yet another plastic surgery trend sparked by GLP-1 drugs like Ozempic, patients who have dropped the pounds are now longing to plump up their sagging lobes — which, according to plastic surgeons, is a fast and easy way to give ears back their “youthful” appearance. “It seems so random, but one morning I was putting earrings on and noticed my earlobes seemed a little heavier, as if they were being pulled downward,” Stephanie L., who lost 45 pounds on Ozempic, told The Post.  “They just seemed to be different, and I thought it was in…