ValueError: Passing reuse_address=True is no longer supported

[philipptrenz]

Hey there,
thanks for this great project! I'm trying to use the async server, but for Python 3.7.6 I get the following stack trace:

Traceback (most recent call last):
  File "./__main__.py", line 48, in <module>
    enable_coa=True
  File "/usr/local/lib/python3.7/asyncio/base_events.py", line 583, in run_until_complete
    return future.result()
  File "/usr/local/lib/python3.7/site-packages/pyrad/server_async.py", line 295, in initialize_transports
    loop=self.loop
  File "/usr/local/lib/python3.7/asyncio/base_events.py", line 1211, in create_datagram_endpoint
    raise ValueError("Passing `reuse_address=True` is no "
ValueError: Passing `reuse_address=True` is no longer supported, as the usage of SO_REUSEPORT in UDP poses a significant security concern.

Under Python 3.7.5 it works. But as it is an security concern, it should be fixed, right?