### 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
CameraTexture::~CameraTexture() {
	if (_texture.is_valid()) {
		RenderingServer::get_singleton()->free(_texture);
	}
}
void PlaceholderTexture2D::set_size(Size2 p_size) {
	size = p_size;
}
int PlaceholderTexture2D::get_width() const {
	return size.width;
}
int PlaceholderTexture2D::get_height() const {
	return size.height;
}
bool PlaceholderTexture2D::has_alpha() const {
	return false;
}
Ref<Image> PlaceholderTexture2D::get_image() const {
	return Ref<Image>();
}
RID PlaceholderTexture2D::get_rid() const {
	return rid;
}
void PlaceholderTexture2D::_bind_methods() {
	ClassDB::bind_method(D_METHOD("set_size", "size"), &PlaceholderTexture2D::set_size);
	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2I, "size", PROPERTY_HINT_NONE, "suffix:px"), "set_size", "get_size");
}
PlaceholderTexture2D::PlaceholderTexture2D() {