### 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
last_color = picker->get_pick_color();
}
void EditorPropertyColor::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_ENTER_TREE:
		case NOTIFICATION_THEME_CHANGED: {
			picker->set_custom_minimum_size(Size2(0, get_theme_constant(SNAME("color_picker_button_height"), SNAME("Editor"))));
		} break;
	}
}
void EditorPropertyColor::update_property() {
	picker->set_pick_color(get_edited_object()->get(get_edited_property()));
	const Color color = picker->get_pick_color();
	
	if (picker->is_editing_alpha()) {
		picker->set_tooltip_text(vformat(
				"R: %s\nG: %s\nB: %s\nA: %s",
				rtos(color.r).pad_decimals(2),
				rtos(color.g).pad_decimals(2),
				rtos(color.b).pad_decimals(2),
				rtos(color.a).pad_decimals(2)));
	} else {
		picker->set_tooltip_text(vformat(
				"R: %s\nG: %s\nB: %s",
				rtos(color.r).pad_decimals(2),
				rtos(color.g).pad_decimals(2),
				rtos(color.b).pad_decimals(2)));
	}
}
void EditorPropertyColor::setup(bool p_show_alpha) {