Update f-g* tests to use entity & device registry fixtures (#103841)

tests/components/fibaro/test_scene.py

tests/components/filter/test_sensor.py

tests/components/fitbit/test_sensor.py

tests/components/flic/test_binary_sensor.py

tests/components/flux_led/test_init.py

tests/components/flux_led/test_light.py

tests/components/flux_led/test_number.py

tests/components/flux_led/test_select.py

tests/components/flux_led/test_switch.py

tests/components/forecast_solar/test_sensor.py

tests/components/freedompro/test_binary_sensor.py

tests/components/freedompro/test_climate.py

tests/components/freedompro/test_cover.py

tests/components/freedompro/test_fan.py

tests/components/freedompro/test_light.py

tests/components/freedompro/test_lock.py

tests/components/freedompro/test_sensor.py

tests/components/freedompro/test_switch.py

tests/components/fritzbox/test_init.py

tests/components/fritzbox/test_sensor.py