Reduce duplicate code

[zerzhang]

Reduce duplicate code for led series

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Files with missing lines	Coverage Δ
switchbot/devices/air_purifier.py	100.00% <100.00%> (ø)
switchbot/devices/base_light.py	100.00% <100.00%> (ø)
switchbot/devices/bulb.py	100.00% <100.00%> (ø)
switchbot/devices/ceiling_light.py	100.00% <100.00%> (ø)
switchbot/devices/device.py	58.97% <100.00%> (+1.25%)	⬆️
switchbot/devices/evaporative_humidifier.py	100.00% <100.00%> (ø)
switchbot/devices/fan.py	100.00% <100.00%> (ø)
switchbot/devices/light_strip.py	100.00% <100.00%> (ø)
switchbot/devices/relay_switch.py	100.00% <100.00%> (ø)
switchbot/devices/vacuum.py	100.00% <ø> (ø)

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[bdraco]

Thanks @zerzhang