Using the :latest localstack, attempts to delete an SQS queue fail with the following error logged to the console.

```localstack_1                          | 2020-02-11T19:04:08:ERROR:localstack.services.generic_proxy: Error forwarding request: 'Attribute.1.Value' Traceback (most recent call last):
localstack_1                          |   File "/opt/code/localstack/localstack/services/generic_proxy.py", line 248, in forward
localstack_1                          |     path=path, data=data, headers=forward_headers)
localstack_1                          |   File "/opt/code/localstack/.venv/lib/python3.7/site-packages/localstack_ext/services/sqs/sqs_extended.py", line 30, in forward_request
localstack_1                          |   File "/opt/code/localstack/localstack/services/sqs/sqs_listener.py", line 60, in forward_request
localstack_1                          |     self._set_queue_attributes(queue_url, req_data)
localstack_1                          |   File "/opt/code/localstack/.venv/lib/python3.7/site-packages/localstack_ext/services/sqs/sqs_extended.py", line 73, in _set_queue_attributes
localstack_1                          |   File "/opt/code/localstack/localstack/services/sqs/sqs_listener.py", line 275, in _set_queue_attributes
localstack_1                          |     attrs = self._format_attributes(req_data)
localstack_1                          |   File "/opt/code/localstack/localstack/services/sqs/sqs_listener.py", line 237, in _format_attributes
localstack_1                          |     key_value = req_data[key2][0]
localstack_1                          | KeyError: 'Attribute.1.Value'```

I'm using terraform to manage my SQS queues and the deletion was triggered by renaming the queue.
existing_range = range(start, end)
        return (int(start_port) in existing_range) or (start_port and int(start_port) in existing_range)
    
    ports_list = sorted(service_ports.values())
    start_port = 0
    last_port = 0
    port_ranges = []
    for i in range(0, len(ports_list)):
        if not start_port:
            start_port = ports_list[i]
        if not last_port:
            last_port = ports_list[i]
        if ports_list[i] > last_port + 1:
            port_ranges.append([start_port, last_port])
            start_port = ports_list[i]
        elif i >= len(ports_list) - 1:
            port_ranges.append([start_port, ports_list[i]])
        last_port = ports_list[i]
    port_mappings = ' '.join([
        '-p {start}-{end}:{start}-{end}'.format(start=entry[0], end=entry[1])
        if entry[0] < entry[1] else '-p {port}:{port}'.format(port=entry[0])
        for entry in port_ranges if not is_mapped(entry[0], entry[1])])
    if services:
        port_mappings = ''