One of the temperatures is showing up as 0 degrees
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### What issue do you have? Please be as thorough and explicit as possible.

I have a set of 3 H5100 temperature and hygrometer - one of them is showing 0 degrees C according to the UI

### Details of your setup.
* Do you use (1) Homebridge UI-X (2) Homebridge CLI or (3) HOOBS? 

1) Homebridge UI-X primarily

* Which version of Homebridge/HOOBS do you have?

Homebridge v1.6.1

* Which platform do you run Homebridge/HOOBS on (e.g. Raspberry Pi/Windows/HOOBS Box)? Please also mention your version of Node.js/NPM if known.

Homebridge on Raspberry Pi 3

* Which version of this plugin (homebridge-govee) do you have? Has the issue started since upgrading from a previous version?

homebridge-govee@9.4.3-beta.5 - it was happening on the latest published version as well

* Which Govee devices do you have that are causing issues? Please include product models if applicable.

H5100

### Please paste any relevant logs below.
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```
[16/09/2023, 20:42:35] [homebridge-govee] This plugin generated a warning from the characteristic 'Current Temperature': characteristic value expected valid finite number and received "NaN" (number). See https://homebridge.io/w/JtMGR for more info.
[16/09/2023, 20:42:35] [Govee] [Freezer] current temperature [NaN°C / NaN°F].
```
