fix sqs list-dead-letter-source-queues's queue-url parameter handling

In sqs list-dead-letter-source-queues JSON data file,
"no_paramfile" was set to false(default) for queue-url parameter,
so while parsing parameters, raw HTTP GET was run
against queue-url, which resulted in 404 error.

```
# BEFORE
$ aws sqs list-dead-letter-source-queues --queue-url "https://sqs.ap-northeast-1.amazonaws.com/000/test_dlq"
Traceback (most recent call last):
...
BadArgumentError: Bad value for argument '--queue-url': Unable to retrieve https://sqs.ap-northeast-1.amazonaws.com/000/test_dlq: received non 200 status code of 404
Bad value for argument '--queue-url': Unable to retrieve https://sqs.ap-northeast-1.amazonaws.com/000/test_dlq: received non 200 status code of 404

# AFTER
$ aws sqs list-dead-letter-source-queues --queue-url "https://sqs.ap-northeast-1.amazonaws.com/000/test_dlq"
{
    "queueUrls": [
        "https://queue.amazonaws.com/000/test_q1",
        "https://queue.amazonaws.com/000/test_q2"
    ]
}
```