SQS ListQueues pagination fix

[akshit-sawhney]

• Adds the fix for pagination

Updated contract:

export interface ListQueuesRequest {
    /**
     * A string to use for filtering the list results. Only those queues whose name begins with the specified string are returned. Queue URLs and names are case-sensitive.
     */
    QueueNamePrefix?: String;
    /**
     * Pagination token to request the next set of results.
     */
    NextToken?: Token;
    /**
     * Maximum number of results to include in the response. Value range is 1 to 1000. You must set MaxResults to receive a value for NextToken in the response.
     */
    MaxResults?: BoxedInteger;
  }