### 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
setting = true;
	spin->setup_and_show();
	spin->get_line_edit()->set_text(TS->format_number(rtos(get_edited_object()->get(get_edited_property()))));
	setting = false;
	spin->show();
}
void EditorPropertyEasing::_spin_value_changed(double p_value) {
	if (setting) {
		return;
	}
	
	
	if (Math::is_zero_approx(p_value)) {
		p_value = 0.00001;
	}
	
	
	p_value = CLAMP(p_value, -1'000'000, 1'000'000);
	if (positive_only) {
		
		p_value = MAX(0.0, p_value);
	}
	emit_changed(get_edited_property(), p_value);
	_spin_focus_exited();
}
void EditorPropertyEasing::_spin_focus_exited() {