Clean deCONZ tests to depend less on integration code (#41015)

homeassistant/components/deconz/binary_sensor.py

homeassistant/components/deconz/climate.py

homeassistant/components/deconz/cover.py

homeassistant/components/deconz/light.py

homeassistant/components/deconz/scene.py

homeassistant/components/deconz/sensor.py

homeassistant/components/deconz/switch.py

tests/components/deconz/test_binary_sensor.py

tests/components/deconz/test_climate.py

tests/components/deconz/test_cover.py

tests/components/deconz/test_deconz_event.py

tests/components/deconz/test_light.py

tests/components/deconz/test_lock.py

tests/components/deconz/test_scene.py

tests/components/deconz/test_sensor.py

tests/components/deconz/test_switch.py