### 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
RID tex = RenderingServer::get_singleton()->texture_3d_create(p_format, p_width, p_height, p_depth, p_mipmaps, p_data);
	ERR_FAIL_COND_V(tex.is_null(), ERR_CANT_CREATE);
	if (texture.is_valid()) {
		RenderingServer::get_singleton()->texture_replace(texture, tex);
	} else {
		texture = tex;
	}
	return OK;
}
void ImageTexture3D::update(const Vector<Ref<Image>> &p_data) {
	ERR_FAIL_COND(!texture.is_valid());
	RenderingServer::get_singleton()->texture_3d_update(texture, p_data);
}
Vector<Ref<Image>> ImageTexture3D::get_data() const {
	ERR_FAIL_COND_V(!texture.is_valid(), Vector<Ref<Image>>());
	return RS::get_singleton()->texture_3d_get(texture);
}
RID ImageTexture3D::get_rid() const {
	if (!texture.is_valid()) {
		texture = RS::get_singleton()->texture_3d_placeholder_create();
	}
	return texture;
}
void ImageTexture3D::set_path(const String &p_path, bool p_take_over) {