New auth token is not saved
### Is there an existing issue for this?

- [X] I have searched the existing issues

### Describe The Bug

If I store a new auth token in the Homebridge ring plugin, it is first saved normally, but after restarting Homebridge the old token is stored again.
The error has existed for over a month, suddenly from one day to the other. I've uninstalled and reinstalled homebridge multiple times

### To Reproduce

Homebridge > Plugins > Homebridge Ring settings > Generate New Refresh Token... Then email address and password, google authenticator... Everything works, new token is also created and saved (is displayed in JSON configuration). But after a restart, the old expired token is stored again.

### Expected behavior

Save a new token so I can access the camera again

### Relevant log output

_No response_

### Screenshots

_No response_

### Homebridge Ring Config

```shell
{
    "platform": "Ring",
    "refreshToken": "*********"
}
```


### Additional context

I hope you can help me, I'm hardly familiar with the topic and my English isn't the best either

### OS

Windows

### Node.js Version

v18.12.1

### NPM Version

v9.8.1

### Homebridge/HOOBs Version

v4.50.5

### Homebridge Ring Plugin Version

v12.0.0

### Operating System

Windows