### Godot version

v4.1.beta1.official [828ec2c5d]

### System information

Godot v4.1.beta1 - Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 2070 SUPER (NVIDIA; 30.0.14.7247) - AMD Ryzen 7 3700X 8-Core Processor (16 Threads)

### Issue description

Converting a project from Godot 3.5 to Godot 4.1 fails to convert the texture references on TouchScreenButton nodes. Before, my TouchScreenButton scene has a Normal and a Pressed texture assigned; after, the scene has no textures assigned!

This seems to be because the converter fails to update the TouchScreenButton node's `normal` and `pressed` properties to `texture_normal` and `texture_pressed`.

Expected behavior is, of course, that the textures convert properly.

### Steps to reproduce

1. Open repro project in Godot 3.5.*. Observe the graphics on the button in `TouchScreenButton.tscn`.
2. Convert the project to Godot 4.1.*. Observe the lack of graphics on the same button.

### Minimal reproduction project

[GD4 Touch Button Convert.zip](https://github.com/godotengine/godot/files/11928549/GD4.Touch.Button.Convert.zip)

if (texture_normal.is_null()) {
		return CanvasItem::get_anchorable_rect();
	}
	return Rect2(Size2(), texture_normal->get_size());
}
void TouchScreenButton::set_visibility_mode(VisibilityMode p_mode) {
	visibility = p_mode;
	queue_redraw();
}
TouchScreenButton::VisibilityMode TouchScreenButton::get_visibility_mode() const {
	return visibility;
}
void TouchScreenButton::set_passby_press(bool p_enable) {
	passby_press = p_enable;
}
bool TouchScreenButton::is_passby_press_enabled() const {
	return passby_press;
}
void TouchScreenButton::_bind_methods() {
	ClassDB::bind_method(D_METHOD("set_texture_normal", "texture"), &TouchScreenButton::set_texture_normal);
	ClassDB::bind_method(D_METHOD("get_texture_normal"), &TouchScreenButton::get_texture_normal);
	ClassDB::bind_method(D_METHOD("set_texture_pressed", "texture"), &TouchScreenButton::set_texture_pressed);
	ClassDB::bind_method(D_METHOD("get_texture_pressed"), &TouchScreenButton::get_texture_pressed);
	ClassDB::bind_method(D_METHOD("set_bitmask", "bitmask"), &TouchScreenButton::set_bitmask);
	ClassDB::bind_method(D_METHOD("get_bitmask"), &TouchScreenButton::get_bitmask);
	ClassDB::bind_method(D_METHOD("set_shape", "shape"), &TouchScreenButton::set_shape);
	ClassDB::bind_method(D_METHOD("get_shape"), &TouchScreenButton::get_shape);