P04 scoped name lint fires on a scoped name with a tilde in scope

The name of the package I just built is `@nagisa~/node-red-dsmr`. Running `node-red-dev/bin/run validate` reports:

```
 ›   Warning: P04 New Packages should use a scoped name
✅ Package uses a valid name
```

If I remove the trailing tilde from the scope, then the lint works correctly.

Interestingly the `flows.node-red.org` page does not flag the package name in a similar way.