### Godot version

4.2 dev 2

### System information

Windows 10 Godot Engine v4.2.dev2.mono.official.da81ca62a - https://godotengine.org OpenGL API 3.3.0 NVIDIA 536.67 - Compatibility - Using Device: NVIDIA - NVIDIA GeForce GTX 980 Ti

### Issue description

If you have multiple openxr action sets it will fail to load all of the action sets after the first one loaded

### Steps to reproduce

Have multiple openxr action sets

### Minimal reproduction project

N/A
OpenXRDisplayRefreshRateExtension *drrext = OpenXRDisplayRefreshRateExtension::get_singleton();
	if (drrext) {
		return drrext->get_refresh_rate();
	}
	return 0.0;
}
void OpenXRAPI::set_display_refresh_rate(float p_refresh_rate) {
	OpenXRDisplayRefreshRateExtension *drrext = OpenXRDisplayRefreshRateExtension::get_singleton();
	if (drrext != nullptr) {
		drrext->set_refresh_rate(p_refresh_rate);
	}
}
Array OpenXRAPI::get_available_display_refresh_rates() const {
	OpenXRDisplayRefreshRateExtension *drrext = OpenXRDisplayRefreshRateExtension::get_singleton();
	if (drrext != nullptr) {
		return drrext->get_available_refresh_rates();
	}
	return Array();
}
double OpenXRAPI::get_render_target_size_multiplier() const {