Pylint cleanups (#15626)

homeassistant/components/alarm_control_panel/alarmdotcom.py

homeassistant/components/alarm_control_panel/arlo.py

homeassistant/components/alarm_control_panel/canary.py

...stant/components/alarm_control_panel/homematicip_cloud.py

homeassistant/components/alarm_control_panel/ifttt.py

homeassistant/components/alarm_control_panel/manual.py

homeassistant/components/alarm_control_panel/manual_mqtt.py

homeassistant/components/alarm_control_panel/mqtt.py

homeassistant/components/alarm_control_panel/simplisafe.py

homeassistant/components/alexa/smart_home.py

homeassistant/components/august.py

homeassistant/components/auth/__init__.py

homeassistant/components/automation/__init__.py

homeassistant/components/automation/homeassistant.py

homeassistant/components/binary_sensor/netatmo.py

homeassistant/components/binary_sensor/rachio.py

homeassistant/components/binary_sensor/raincloud.py

homeassistant/components/binary_sensor/threshold.py

homeassistant/components/binary_sensor/volvooncall.py

homeassistant/components/binary_sensor/workday.py