Spencer Platt/GettyIn an effort to beat back bombshell sexual assault allegations leveled by a former co-worker, New York City Mayor Eric Adams has retained a celebrity attorney who, in the words of The New Yorker, “keeps the rich and famous above the law.”A notice of appearance filed Monday in Manhattan Supreme Court reveals that Alex Spiro—who charges $2,025 an hour for his services—has signed on as Adams’ co-counsel in the ongoing lawsuit filed by Lorna Beach-Mathura, who alleges that the may