Fix property type for OpenXR display refresh rate

modules/openxr/openxr_interface.cpp

@@ -45,7 +45,7 @@ void OpenXRInterface::_bind_methods() {
 	// Display refresh rate
 	ClassDB::bind_method(D_METHOD("get_display_refresh_rate"), &OpenXRInterface::get_display_refresh_rate);
 	ClassDB::bind_method(D_METHOD("set_display_refresh_rate", "refresh_rate"), &OpenXRInterface::set_display_refresh_rate);
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "display_refresh_rate"), "set_display_refresh_rate", "get_display_refresh_rate");
+	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "display_refresh_rate"), "set_display_refresh_rate", "get_display_refresh_rate");
 
 	ClassDB::bind_method(D_METHOD("get_available_display_refresh_rates"), &OpenXRInterface::get_available_display_refresh_rates);
 }