Changes to List available voices

response property items/id list-of-types was widened by adding types null to media type application/json of response 200

response property items/internalVoiceId list-of-types was widened by adding types null to media type application/json of response 200

response property items/name list-of-types was widened by adding types null to media type application/json of response 200

response property items/previewUrl list-of-types was widened by adding types null to media type application/json of response 200

response property items/restriction list-of-types was widened by adding types null to media type application/json of response 200

response property items/voiceId list-of-types was widened by adding types null to media type application/json of response 200

removed the blocked enum value from the items/restriction response property for the response status 200

removed the undefined enum value from the items/restriction response property for the response status 200

removed the verification_required enum value from the items/restriction response property for the response status 200

added the optional property items/restriction to the response with the 200 status