fix: manage BrokenPipeError thrown by MessageBus.connect()

[xdarklight]

With Home Assistant 2022.8.7 (and also 2022.8.2) I get:

hass[345]: 2022-08-27 18:00:52.289 ERROR (MainThread) [homeassistant.setup] Error during setup of component bluetooth
hass[345]: Traceback (most recent call last):
hass[345]:   File "/usr/lib/python3.10/site-packages/homeassistant/setup.py", line 235, in _async_setup_component
hass[345]:     result = await task
hass[345]:   File "/usr/lib/python3.10/site-packages/homeassistant/components/bluetooth/__init__.py", line 244, in async_setup
hass[345]:     elif await _async_has_bluetooth_adapter():
hass[345]:   File "/usr/lib/python3.10/site-packages/homeassistant/components/bluetooth/__init__.py", line 224, in _async_has_bluetooth_adapter
hass[345]:     return bool(await async_get_bluetooth_adapters())
hass[345]:   File "/usr/lib/python3.10/site-packages/homeassistant/components/bluetooth/util.py", line 19, in async_get_bluetooth_adapters
hass[345]:     adapters = await get_bluetooth_adapters()
hass[345]:   File "/var/lib/hass/deps/lib/python3.10/site-packages/bluetooth_adapters/__init__.py", line 21, in get_bluetooth_adapters
hass[345]:     bus = await MessageBus(
hass[345]:   File "/usr/lib/python3.10/site-packages/dbus_next/aio/message_bus.py", line 175, in connect
hass[345]:     self._stream.flush()
hass[345]:   File "/usr/lib/python3.10/socket.py", line 723, in write
hass[345]:     return self._sock.send(b)
hass[345]: BrokenPipeError: [Errno 32] Broken pipe
hass[345]: 2022-08-27 18:00:53.072 ERROR (SyncWorker_0) [homeassistant] Error doing job: Future exception was never retrieved
hass[345]: Traceback (most recent call last):
hass[345]:   File "/usr/lib/python3.10/site-packages/dbus_next/aio/message_bus.py", line 158, in on_hello
hass[345]:     raise err
hass[345]:   File "/usr/lib/python3.10/site-packages/dbus_next/aio/message_bus.py", line 365, in _message_reader
hass[345]:     if self._unmarshaller.unmarshall():
hass[345]:   File "/usr/lib/python3.10/site-packages/dbus_next/_private/unmarshaller.py", line 304, in unmarshall
hass[345]:     self._unmarshall()
hass[345]:   File "/usr/lib/python3.10/site-packages/dbus_next/_private/unmarshaller.py", line 243, in _unmarshall
hass[345]:     self.read(16, prefetch=True)
hass[345]:   File "/usr/lib/python3.10/site-packages/dbus_next/_private/unmarshaller.py", line 91, in read
hass[345]:     raise EOFError()
hass[345]: EOFError

This is on a Shenzhen Amediatech Technology Co., Ltd X96 Max running 5.18.1-1-aarch64-ARCH (Arch Linux ARM).
It has an AP6356S Bluetooth + wifi combo but I don't have bluetooth enabled (only bluez-libs are installed - none of the following is installed: bluez with the daemon, bluez-utils and bluez-tools).

Home Assistant still uses bluetooth-adapters version 0.1.3 but with the unit test I am able to reproduce the same issue on the latest version.

I think adding a fix in the bluetooth-adapters project is the right way. This is the first time I am troubleshooting (and trying to fix) Home Assistant though.

[codecov]

Codecov Report

Merging #9 (a301eaf) into main (ce613ea) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main       #9   +/-   ##
=======================================
  Coverage   87.50%   87.50%           
=======================================
  Files           1        1           
  Lines          56       56           
  Branches       10       10           
=======================================
  Hits           49       49           
  Misses          6        6           
  Partials        1        1           

Impacted Files	Coverage Δ
src/bluetooth_adapters/__init__.py	87.50% <100.00%> (ø)

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[bdraco]

Thanks