Check for Out of Date Items / Plugins (cli)
### Current Situation

Hi,

Similar to this [query](https://github.com/homebridge/homebridge/issues/1870), I am trying to determine what out of date items or plugins exist, via the cli (bash). I have executed the noted command (`sudo npm outdated -g`), but it comes back blank - in spite of the fact that the Homebridge UI shows out of date items. So it seems this command / approach does not work? Is there another (or better) way?

Thanks!

### Logs

```markdown
N/A - command output is blank.
```


### Configuration

```json
N/A
```


### Environment

- OS: Ubuntu 22.04
- Software: 1.4.0
- Node: v16.13.0
- npm: 8.8.0

### Process Supervisor

systemd

### Additional Context

N/A