[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>
```

if not is_port_open(port, http_path=http_path, expect_success=expect_success):
            raise Exception()
    return retry(check, sleep=sleep_time, retries=retries)
def port_can_be_bound(port):
    """ Return whether a local port can be bound to. Note that this is a stricter check
        than is_port_open(...) above, as is_port_open() may return False if the port is
        not accessible (i.e., does not respond), yet cannot be bound to. """
    try:
        tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        tcp.bind(('', port))
        return True
    except Exception:
        return False
def get_free_tcp_port(blacklist=None):
    blacklist = blacklist or []
    for i in range(10):
        tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        tcp.bind(('', 0))
        addr, port = tcp.getsockname()
        tcp.close()
        if port not in blacklist:
            return port
    raise Exception('Unable to determine free TCP port with blacklist %s' % blacklist)
def sleep_forever():
    while True:
        time.sleep(1)
def get_service_protocol():
    return 'https' if config.USE_SSL else 'http'
def edge_ports_info():