Release 4.50.0 question regarding Node.js
### Current Situation

The release notes for 4.50.0 say ""Node.js v14.15.0 or later is REQUIRED... Do not update to this version if you are not running v14.15.0 or later"
How do I tell what version I am running, so I know whether or not to upgrade to 4.50.0 ?  
We're not all Linux programmers...
Thank you


### Logs

```markdown
None
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### Configuration

```json
None
```


### Environment

- OS:
- Software: homebridge-config-ui-x v4.49.0
- Node:
- npm:


### Process Supervisor

other (Explain in `Additional Context`)

### Additional Context

I don't even know what you mean by "Process Supervisor".  I ran the Homebridge installer on a Raspberry Pi 3B+ and it's worked fine without me ever having to spelunk into its internals.
