### 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
}
void EditorPropertyTextEnum::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_ENTER_TREE:
		case NOTIFICATION_THEME_CHANGED: {
			edit_button->set_icon(get_theme_icon(SNAME("Edit"), SNAME("EditorIcons")));
			accept_button->set_icon(get_theme_icon(SNAME("ImportCheck"), SNAME("EditorIcons")));
			cancel_button->set_icon(get_theme_icon(SNAME("ImportFail"), SNAME("EditorIcons")));
		} break;
	}
}
EditorPropertyTextEnum::EditorPropertyTextEnum() {
	HBoxContainer *hb = memnew(HBoxContainer);
	add_child(hb);
	default_layout = memnew(HBoxContainer);
	default_layout->set_h_size_flags(SIZE_EXPAND_FILL);
	hb->add_child(default_layout);
	edit_custom_layout = memnew(HBoxContainer);
	edit_custom_layout->set_h_size_flags(SIZE_EXPAND_FILL);
	edit_custom_layout->hide();
	hb->add_child(edit_custom_layout);