Get text-to-speech request status.

curl --request GET \
  --url https://api.uberduck.ai/speak-status

{
  "failed_at": "2023-11-07T05:31:56Z",
  "finished_at": "2023-11-07T05:31:56Z",
  "meta": {},
  "path": "<string>",
  "started_at": "2023-11-07T05:31:56Z"
}