### Godot version

4.0.beta13 (caacade56)

### System information

Windows 10

### Issue description

Seems like this was missed in #62011 and #70540. `@export_multiline` should also support the PackedStringArray datatype on top of Array[String] and Dictionary, but it doesn't, instead giving the error `"@export_multiline" annotation requires a variable of type "String" but type "PackedStringArray" was given instead.`

### Steps to reproduce

Create a PackedStringArray with the `@export_multiline` annotation.
```gdscript
@export_multiline var npc_dialog: PackedStringArray
```

### Minimal reproduction project

N/A
String full_path = get_edited_object()->get(get_edited_property());
	path->set_text(full_path);
	path->set_tooltip_text(full_path);
}
void EditorPropertyPath::setup(const Vector<String> &p_extensions, bool p_folder, bool p_global) {
	extensions = p_extensions;
	folder = p_folder;
	global = p_global;
}
void EditorPropertyPath::set_save_mode() {