[X] bug report
[ ] feature request

# Detailed description

The AWS API supports Authorization parameters as GET parameters, e.g. here's a GET request to SendMessage on SQS:

```
curl 'http://localhost:4566/000000000000/SomeQueue.fifo?Action=SendMessage&MessageGroupId=Default&MessageDeduplicationId=1615597859837&MessageBody=%7B%22gateway_id%22%3A%20%2204e73c80-3539-499c-92a4-a0b106c2f6ab%22%7D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=test%2F20210313%2Fus-east-1%2Fsqs%2Faws4_request&X-Amz-Date=20210313T011059Z&X-Amz-Expires=86400000&X-Amz-SignedHeaders=host&X-Amz-Signature=2c652c7bc9a3b75579db3d987d1e6dd056f0ac776c1e1d4ec91e2ce84e5ad3ae'
```

## Expected behavior

Should send the message and return receipt information.

## Actual behavior

Returns...

```
<?xml version="1.0" encoding="UTF-8"?>
<Error>
    <Code>NoSuchBucket</Code>
    <Message>The specified bucket does not exist</Message>
    <BucketName>000000000000</BucketName>
    <RequestID>7a62c49f-347e-4fc4-9331-6e8eEXAMPLE</RequestID>
</Error>
```

return run_safe(run, print_error=False, **kwargs)
def run_for_max_seconds(max_secs, _function, *args, **kwargs):
    """ Run the given function for a maximum of `max_secs` seconds - continue running
        in a background thread if the function does not finish in time. """
    def _worker(*_args):
        result = None
        try:
            result = _function(*args, **kwargs)
        except Exception as e:
            result = e
        result = True if result is None else result
        q.put(result)
        return result
    start = now()
    q = Queue()
    start_worker_thread(_worker)
    for i in range(max_secs * 2):
        result = None
        try:
            result = q.get_nowait()
        except Exception:
            pass
        if result is not None:
            if isinstance(result, Exception):
                raise result
            return result
        if now() - start >= max_secs:
            return
        time.sleep(0.5)
def run(cmd, cache_duration_secs=0, **kwargs):