### 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 s = get_edited_object()->get(get_edited_property());
	property->set_text(s);
	selected_type = s;
}
void EditorPropertyClassName::_property_selected() {
	dialog->popup_create(true);
}
void EditorPropertyClassName::_dialog_created() {
	selected_type = dialog->get_selected_type();
	emit_changed(get_edited_property(), selected_type);
	update_property();
}
void EditorPropertyClassName::_bind_methods() {
}
EditorPropertyClassName::EditorPropertyClassName() {
	property = memnew(Button);
	property->set_clip_text(true);
	add_child(property);
	add_focusable(property);
	property->set_text(selected_type);
	property->connect("pressed", callable_mp(this, &EditorPropertyClassName::_property_selected));
	dialog = memnew(CreateDialog);
	dialog->set_base_type(base_type);
	dialog->connect("create", callable_mp(this, &EditorPropertyClassName::_dialog_created));
	add_child(dialog);
}
void EditorPropertyCheck::_set_read_only(bool p_read_only) {