Update voice options from 20240329 release

> Note, zh-CN-XiaoxiaoMultiligualNeural is still rolling, expect to cover all regions like all other voices around 4/9

Source: https://techcommunity.microsoft.com/t5/ai-azure-ai-services-blog/9-more-realistic-ai-voices-for-conversations-now-generally/ba-p/4099471