By Parisa Hafezi DUBAI (Reuters) -Protests ignited by the death of a young woman in police custody continued across Iran on Sunday in defiance of a crackdown by the authorities, as a human rights group said at least 185 people, including children, had been killed in demonstrations. Anti-government protests that began on Sept. 17 at the funeral of 22-year-old Mahsa Amini in her Kurdish town of Saqez, have turned into the biggest challenge to Iran’s clerical leaders in years, with protesters calling for the downfall of Supreme Leader Ayatollah Ali Khamenei. “At least 185 people, including at lea…