Issue authenticating with LLAT

[artmg]

I am trying out scenegen, but following prevailing wisdom on Authentication I have created a Long Lived Access Token (LLAT) in my profile instead of a system-wide API-key. I get Error 111 Connection refused

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 141, in _new_conn
    (self.host, self.port), self.timeout, **extra_kw)
  File "/usr/lib/python3/dist-packages/urllib3/util/connection.py", line 83, in create_connection
    raise err
  File "/usr/lib/python3/dist-packages/urllib3/util/connection.py", line 73, in create_connection
    sock.connect(sa)
ConnectionRefusedError: [Errno 111] Connection refused

I will try tweaking the code to use the HTTP Header Authorization: BEARER as per https://developers.home-assistant.io/docs/en/auth_api.html#example-python to see if this resolves it, otherwise I might have to use the old api-key approach for now (and slap my own wrist ;)

[artmg]

I have written and tested a fix for this, signed the CLA and submitted the PR. Thanks!