### Godot version

4.0.dev (d0398f62f0)

### System information

Windows 10

### Issue description

`PlaceholderTexture2D::size` property is registered as a `Vector2I`: https://github.com/godotengine/godot/blob/0daa86d70e7338506c37bee6b6e0c4aba7255d68/scene/resources/texture.cpp#L3389  
It should be a `Vector2`, as setter method use a `Vector2` and so parent class getter method.

### Steps to reproduce

N/A

### Minimal reproduction project

N/A
String path = ResourceLoader::path_remap(get_path());
	if (!path.is_resource_file()) {
		return;
	}
	Ref<Image> img;
	img.instantiate();
	if (ImageLoader::load_image(path, img) == OK) {
		set_image(img);
	} else {
		Resource::reload_from_file();
		notify_property_list_changed();
		emit_changed();
	}
}
bool ImageTexture::_set(const StringName &p_name, const Variant &p_value) {
	if (p_name == "image") {
		set_image(p_value);
		return true;
	}
	return false;
}
bool ImageTexture::_get(const StringName &p_name, Variant &r_ret) const {
	if (p_name == "image") {
		r_ret = get_image();
		return true;
	}
	return false;
}
void ImageTexture::_get_property_list(List<PropertyInfo> *p_list) const {