Modernize Sleepiq and add new entities (#66336)

CODEOWNERS

homeassistant/components/sleepiq/__init__.py

homeassistant/components/sleepiq/binary_sensor.py

homeassistant/components/sleepiq/config_flow.py

homeassistant/components/sleepiq/const.py

homeassistant/components/sleepiq/coordinator.py

homeassistant/components/sleepiq/entity.py

homeassistant/components/sleepiq/manifest.json

homeassistant/components/sleepiq/sensor.py

requirements_all.txt

requirements_test_all.txt

tests/components/sleepiq/conftest.py

tests/components/sleepiq/fixtures/bed-single.json

tests/components/sleepiq/fixtures/bed.json

tests/components/sleepiq/fixtures/familystatus-single.json

tests/components/sleepiq/fixtures/familystatus.json

tests/components/sleepiq/fixtures/login.json

tests/components/sleepiq/fixtures/sleeper.json

tests/components/sleepiq/test_binary_sensor.py

tests/components/sleepiq/test_config_flow.py