H7021 - Can't change color / brightness
### What issue do you have? Please be as thorough and explicit as possible.

When trying to change light color it always reverts to "rgb 120 46 3"

Changing brightness results in incorrect brightness. When changing the brightness from within the Govee app, homebridge spits out a much different brightness percentage. For example: 50% brightness in govee app = 20% in home bridge, 100% in govee = 39% in homebridge.


### Details of your setup.

Homebridge v1.6.0 - homebridge-config-ui-x v4.50.2

homebridge-govee v7.9.3 - just installed, have not updated.

Docker on Raspberry Pi 4

Govee LED String Lights - H7021


### Please paste any relevant logs below.

```
[3/12/2023, 4:41:40 PM] [Govee] [LED Bulb String Lights] current colour [rgb 0 255 0].
[3/12/2023, 4:41:42 PM] [Govee] [LED Bulb String Lights] current colour [rgb 120 46 3].
[3/12/2023, 4:41:46 PM] [Govee] [LED Bulb String Lights] current colour [rgb 79 103 255].
[3/12/2023, 4:41:48 PM] [Govee] [LED Bulb String Lights] current colour [rgb 120 46 3].
[3/12/2023, 4:41:50 PM] [Govee] [LED Bulb String Lights] current colour [rgb 204 219 255].
[3/12/2023, 4:41:52 PM] [Govee] [LED Bulb String Lights] current colour [rgb 120 46 3].
[3/12/2023, 4:41:55 PM] [Govee] [LED Bulb String Lights] current brightness [63%].
[3/12/2023, 4:41:56 PM] [Govee] [LED Bulb String Lights] current brightness [63%].
[3/12/2023, 4:41:58 PM] [Govee] [LED Bulb String Lights] current brightness [45%].
[3/12/2023, 4:42:00 PM] [Govee] [LED Bulb String Lights] current brightness [45%].
[3/12/2023, 4:42:03 PM] [Govee] [LED Bulb String Lights] current brightness [30%].
[3/12/2023, 4:42:04 PM] [Govee] [LED Bulb String Lights] current brightness [30%].
```
