### 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
if (sub_inspector) {
		sub_inspector->expand_revertable();
	}
}
void EditorPropertyResource::set_use_sub_inspector(bool p_enable) {
	use_sub_inspector = p_enable;
}
void EditorPropertyResource::fold_resource() {
	bool unfolded = get_edited_object()->editor_is_section_unfolded(get_edited_property());
	if (unfolded) {
		resource_picker->set_toggle_pressed(false);
		get_edited_object()->editor_set_section_unfold(get_edited_property(), false);
		update_property();
	}
}
void EditorPropertyResource::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_ENTER_TREE:
		case NOTIFICATION_THEME_CHANGED: {
			if (!updating_theme) {
				_update_property_bg();
			}
		} break;
	}
}
EditorPropertyResource::EditorPropertyResource() {