By Jiraporn Kuhakan BANGKOK (Reuters) – A beauty queen who spoke out against Myanmar’s military rulers was stranded at Thailand’s international airport for a third day on Friday, hoping to be granted entry, as activists and her employer urged authorities not to send her back to her homeland. Han Lay, who gained international attention last year with her moving pageant speech on the army’s deadly suppression of anti-junta protests in her native Myanmar, has been denied entry by Thai authorities, despite having taken refuge in Thailand for the past year. The 23-year-old model, whose real name is…