update `unnecessary_parenthesis` for constructor tear-offs

Follow-up from dart-lang/sdk#58424.

Some cases to consider:

```dart
  var makeUtcDate = DateTime.utc;
  (makeUtcDate)(1); // LINT
  (DateTime.utc)(1); // LINT
  (List<int>.filled)(3, 0); // LINT
  (List.filled)<int>(3, 0); // OK
  var tearoff = (List<int>.filled); // LINT
  (List<int>).toString(); //OK
```

/fyi @srawlins 