The new HomeKit-enabled Hue Bridge ($60) that Philips has been teasing for months is now available. The upgraded Bridge 2.0 allows users to control all existing and future Hue bulbs and lamps using Siri, courtesy of the updated Hue app. Siri functionality can be turned on in Settings once the app is downloaded, allowing Hue owners to issue voice commands to alter a room’s lighting, change the temperature on their thermostat, or lock their doors.…