CNN fired its star anchor Chris Cuomo after learning of a sexual misconduct allegation made against him by a colleague from his time at ABC News, it was claimed.   The unnamed woman’s lawyer, Debra Katz, went to CNN executives on Wednesday – the day after Cuomo was ‘suspended indefinitely’ by the network for giving his brother Andrew’s team far more extensive assistance than he had admitted. An insider told the Post it was that woman’s claims – which haven’t been…