WebsocketEndpointObject incorrect type

[joshdschneider]

Hi! It looks like the headers property for this interface should be an object, not an array.

export interface WebsocketEndpointObject extends CallEndpointObject {
    uri: string;
    contentType: WebsocketBitrate;
    headers?: Headers[];
}

Version details:

"dependencies": {
    "@vonage/auth": "^1.3.0",
    "@vonage/voice": "^1.4.0",
  }