### 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
proxy_ph = RS::get_singleton()->texture_2d_placeholder_create();
	proxy = RS::get_singleton()->texture_proxy_create(proxy_ph);
	RenderingServer::get_singleton()->texture_set_force_redraw_if_visible(proxy, true);
	RenderingServer::get_singleton()->connect("frame_pre_draw", callable_mp(this, &AnimatedTexture::_update_proxy));
}
AnimatedTexture::~AnimatedTexture() {