`UnnecessaryQualifier` outputs warnings for qualifier annotations copied by lombok

Not sure if this is feasible to address, but e.g. with lombok you can do

```
@RequiredArgsConstructor
class MyClass {

@SpecialString final String injectedString;
}
```

and configure it to copy `@SpecialString` to the generated constructor's parameter. at the moment errorprone is warning about the qualifier on the injected field, but there's nowhere else to put it in lombok land.