GDScript emits wrong error for unkown annotations

### Tested versions

4.3
v4.4.dev.custom_build [92e51fca7]

### System information

Fedora 40

### Issue description

The following script
```
@hello_world
var test
```
will emit `Annotation "@hello" is not allowed in this level.` although `@hello` is not a valid annotation.

### Steps to reproduce

Copy the script into Godot 4.3

### Minimal reproduction project (MRP)

-