I cannot configure the component after install

Describe the bug

When I enter my Google account and application password I got an “Unknown error occured”

Version of the integration

If you are unsure about the version check the github release here.

1.4.3

## Logs

<!-- To enable debug logs, put the below snippet in your configuration.yaml file.

logger:
  default: debug
  logs:
    custom_components.google_home: debug
-->

<!-- Paste logs below here-->

```text
2021-05-31 13:48:16 WARNING (MainThread) [homeassistant.components.http.security_filter] Filtered a request with a potential harmful query string: /devices.inc.php?search=True&searchField=antani'+union+select+(select+concat(0x223e3c42523e5b70726f6a6563742d646973636f766572795d)+limit+0,1),NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL+--+&searchColumn=n.id&searchOption=contains
2021-05-31 13:50:32 ERROR (MainThread) [aiohttp.server] Error handling request
Traceback (most recent call last):
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/aiohttp/web_protocol.py", line 422, in _handle_request
    resp = await self._request_handler(request)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/aiohttp/web_app.py", line 499, in _handle
    resp = await handler(request)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/aiohttp/web_middlewares.py", line 119, in impl
    return await handler(request)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/components/http/security_filter.py", line 56, in security_filter_middleware
    return await handler(request)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/components/http/request_context.py", line 18, in request_context_middleware
    return await handler(request)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/components/http/ban.py", line 74, in ban_middleware
    return await handler(request)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/components/http/auth.py", line 135, in auth_middleware
    return await handler(request)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/components/http/view.py", line 131, in handle
    result = await result
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/components/config/config_entries.py", line 155, in post
    return await super().post(request, flow_id)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/components/http/data_validator.py", line 63, in wrapper
    result = await method(view, request, *args, **kwargs)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/helpers/data_entry_flow.py", line 109, in post
    result = await self._flow_mgr.async_configure(flow_id, data)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/data_entry_flow.py", line 199, in async_configure
    result = await self._async_handle_step(flow, cur_step["step_id"], user_input)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/homeassistant/data_entry_flow.py", line 257, in _async_handle_step
    result: FlowResult = await getattr(flow, method)(user_input)
  File "/mnt/dietpi_userdata/homeassistant/custom_components/google_home/config_flow.py", line 59, in async_step_user
    master_token = await self._test_credentials(client)
  File "/mnt/dietpi_userdata/homeassistant/custom_components/google_home/config_flow.py", line 92, in _test_credentials
    master_token = await client.async_get_master_token()
  File "/mnt/dietpi_userdata/homeassistant/custom_components/google_home/api.py", line 71, in async_get_master_token
    master_token = await self.hass.async_add_executor_job(_get_master_token)
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/mnt/dietpi_userdata/homeassistant/custom_components/google_home/api.py", line 69, in _get_master_token
    return self._client.get_master_token()
  File "/mnt/dietpi_userdata/homeassistant/deps/lib/python3.8/site-packages/glocaltokens/client.py", line 247, in get_master_token
    res = perform_master_login(
  File "/mnt/dietpi_userdata/homeassistant/deps/lib/python3.8/site-packages/gpsoauth/__init__.py", line 139, in perform_master_login
    return _perform_auth_request(data, proxy)
  File "/mnt/dietpi_userdata/homeassistant/deps/lib/python3.8/site-packages/gpsoauth/__init__.py", line 80, in _perform_auth_request
    session.mount(AUTH_URL, AuthHTTPAdapter())
  File "/home/homeassistant/.pyenv/versions/3.8.10/lib/python3.8/site-packages/requests/adapters.py", line 129, in __init__
    self.init_poolmanager(pool_connections, pool_maxsize, block=pool_block)
  File "/mnt/dietpi_userdata/homeassistant/deps/lib/python3.8/site-packages/gpsoauth/__init__.py", line 71, in init_poolmanager
    context.post_handshake_auth = True
AttributeError: attribute 'post_handshake_auth' of '_ssl._SSLContext' objects is not writable
![Knipsel](https://user-images.githubusercontent.com/16529684/120190296-b1079580-c218-11eb-8395-fd22463e2991.JPG)

[KapJI]

You have incompatible version of OpenSSL installed.

From https://docs.python.org/3/library/ssl.html#ssl.SSLContext.post_handshake_auth:

Note: Only available with OpenSSL 1.1.1 and TLS 1.3 enabled. Without TLS 1.3 support, the property value is None and can’t be modified

[leikoilja]

Awesome, thanks @KapJI for some good insights regarding TLS support, good to know for further debugging