### Godot version

v4.1.beta

### System information

Windows 10

### Issue description

```
        virtual Ref<Script> get_script() const override {
                if (native_info->get_script_func) {
                        GDExtensionObjectPtr script = native_info->get_script_func(instance);
                        return Ref<Script>(reinterpret_cast<Script *>(script));
                }
                return Ref<Script>();
```
Is not creating a functional reference.

GDExtensionObjectPtr is a part of gdextension_interface and is a void pointer to pas data pointers between GDExtesion and Godot Core.

In the images below you are able to see that the extension `reinterpret_cast `works fine.
And that the pointer is passed to core.
However at core `Ref<Script> script_test` stays a NULL value

![image](https://github.com/godotengine/godot/assets/20573784/d4a955d3-4e02-46e2-abf1-ba88cf501e8f)
![image](https://github.com/godotengine/godot/assets/20573784/42a3fbb8-3598-479a-86bc-8b9464624885)
![image](https://github.com/godotengine/godot/assets/20573784/620782c0-192c-4e14-829c-5817ae680378)

I was hoping this would be solved by solving [cpp 1119](https://github.com/godotengine/godot-cpp/issues/1119)



### Steps to reproduce

Create a custom script instance and create it using `internal::gdextension_interface_script_instance_create` and a `GDExtensionScriptInstanceInfo` that only implements `get_property_list_func` and `get_script_func`.

### Minimal reproduction project

Difficult to create a minimal project.
Mostly looking for advice on what to test to find the actual source problem
Dictionary ret;
		GDVIRTUAL_REQUIRED_CALL(_validate, p_script, p_path, r_functions != nullptr, r_errors != nullptr, r_warnings != nullptr, r_safe_lines != nullptr, ret);
		if (!ret.has("valid")) {
			return false;
		}
		if (r_functions != nullptr && ret.has("functions")) {
			Vector<String> functions = ret["functions"];
			for (int i = 0; i < functions.size(); i++) {
				r_functions->push_back(functions[i]);
			}
		}
		if (r_errors != nullptr && ret.has("errors")) {
			Array errors = ret["errors"];
			for (int i = 0; i < errors.size(); i++) {
				Dictionary err = errors[i];
				ERR_CONTINUE(!err.has("line"));
				ERR_CONTINUE(!err.has("column"));
				ERR_CONTINUE(!err.has("message"));
				ScriptError serr;
				serr.line = err["line"];
				serr.column = err["column"];
				serr.message = err["message"];
				r_errors->push_back(serr);
			}
		}
		if (r_warnings != nullptr && ret.has("warnings")) {
			ERR_FAIL_COND_V(!ret.has("warnings"), false);
			Array warnings = ret["warnings"];
			for (int i = 0; i < warnings.size(); i++) {