List voices

curl --request GET \
  --url https://app.phonely.ai/api/list-voices

[
  {
    "name": "<string>",
    "id": "<string>",
    "gender": "<string>",
    "language": "<string>",
    "tags": [
      "<string>"
    ],
    "accent": "<string>",
    "isMultiLingualSupport": true
  }
]