* Anti-mine protesters occupy Canadian company project * Five workers held at the site by demonstrators * One man killed in latest mine-related unrest LA PAZ, July 6 (Reuters) - A Bolivian man died and at least four others were hurt as protesters occupied a silver mining property belonging to South American Silver Corp in the Andean highlands, local media reported on Friday. Violence flared at the Malku Khota project on Thursday as authorities negotiated with peasant farmers ho