Thanks for reporting! I've just hit this myself.
Just updated to XCode14 and running the Simulator, all TTS voices have gone. There doesn't seem to be a way to install voices on the simulator...
Similar thing happened on the upgrade to iOS 13. I filed a bug about that at the time, might be useful...?
https://feedbackassistant.apple.com/feedback/7377963
Cuespeak
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