Usage of deprecated annotations is not reported by Dotty

## Compiler version

https://github.com/scala/scala3/commit/c4c48e3efe6de5109945c10b995d3cd838da780f

## Minimized code

```scala
//> using options -deprecation
@deprecated
final class annot extends annotation.StaticAnnotation

@annot
object Test
```

## Output

No warnings

## Expectation

When using `annot`, the compiler should report a deprecation warning.
