### 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
ERR_FAIL_COND_V_MSG(instance != XR_NULL_HANDLE, false, "OpenXR instance was already created");
	if (!openxr_loader_init()) {
		return false;
	}
	if (p_rendering_driver == "vulkan") {
#ifdef VULKAN_ENABLED
		graphics_extension = memnew(OpenXRVulkanExtension);
		register_extension_wrapper(graphics_extension);
#else
		
		ERR_FAIL_V(false);
#endif
	} else if (p_rendering_driver == "opengl3") {
#if defined(GLES3_ENABLED) && !defined(MACOS_ENABLED)
		graphics_extension = memnew(OpenXROpenGLExtension);
		register_extension_wrapper(graphics_extension);
#else
		
		ERR_FAIL_V(false);
#endif
	} else {
		ERR_FAIL_V_MSG(false, "OpenXR: Unsupported rendering device.");
	}
	
	for (OpenXRExtensionWrapper *wrapper : registered_extension_wrappers) {