This plugin generated a warning
This plugin generated a warning from the characteristic 'Volume': characteristic was supplied illegal value: number -1 exceeded minimum of 0.

This began after upgrading homebridge to the latest version: 1.3.1


Node.js Version | v14.15.4
-- | --
NPM Version | v7.5.4

Config:

```
{
    "devices": [
        {
            "name": "Playroom TV",
            "ip": "10.0.0.74",
            "mac": "EC:F4:51:4C:D4:76",
            "prefsDir": "~/.webosTv",
            "pollingInterval": 1,
            "legacyTvService": false,
            "showInputButtons": false,
            "volumeControl": "false",
            "volumeLimit": 100,
            "channelControl": false,
            "mediaControl": false,
            "infoButtonAction": "INFO"
        }
    ],
    "platform": "webostv"
}
```
