Please change minimum temperature for valve
Hallo,

the minimum temperature for HomeMatic thermonstates are 7 degrees, not 10 for HM-CC-RT-DN and HM-CC-TC!

[23.2.2021, 13:37:10] [homebridge-homematic] This plugin generated a warning from the characteristic 'Target Temperature': characteristic was supplied illegal value: number 7 exceeded minimum of 10. See https://git.io/JtMGR for more info.
[23.2.2021, 13:37:10] [homebridge-homematic] This plugin generated a warning from the characteristic 'Target Temperature': characteristic was supplied illegal value: number 7 exceeded minimum of 10. See https://git.io/JtMGR for more info.

![Bildschirmfoto 2021-02-23 um 13 45 30](https://user-images.githubusercontent.com/73777886/108860808-da4bd080-75ee-11eb-8ade-911ce24962a5.jpg)
