### 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
paginator->update(page_index, max_page);
		paginator->set_visible(max_page > 0);
		int amount = MIN(size - offset, page_length);
		for (int i = 0; i < amount; i++) {
			bool reorder_is_from_current_page = reorder_from_index / page_length == page_index;
			if (reorder_is_from_current_page && i == reorder_from_index % page_length) {
				
				continue;
			}
			if (!reorder_is_from_current_page && i == reorder_to_index % page_length) {
				
				
				
				continue;
			}
			HBoxContainer *hbox = memnew(HBoxContainer);
			property_vbox->add_child(hbox);
			Button *reorder_button = memnew(Button);
			reorder_button->set_icon(get_theme_icon(SNAME("TripleBar"), SNAME("EditorIcons")));
			reorder_button->set_default_cursor_shape(Control::CURSOR_MOVE);
			reorder_button->set_disabled(is_read_only());
			reorder_button->connect("gui_input", callable_mp(this, &EditorPropertyArray::_reorder_button_gui_input));
			reorder_button->connect("button_down", callable_mp(this, &EditorPropertyArray::_reorder_button_down).bind(i + offset));
			reorder_button->connect("button_up", callable_mp(this, &EditorPropertyArray::_reorder_button_up));
			hbox->add_child(reorder_button);
			String prop_name = "indices/" + itos(i + offset);
			EditorProperty *prop = nullptr;
			Variant value = array.get(i + offset);
			Variant::Type value_type = value.get_type();
			if (value_type == Variant::NIL && subtype != Variant::NIL) {