### 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 warn = warnings[i];
				ERR_CONTINUE(!warn.has("start_line"));
				ERR_CONTINUE(!warn.has("end_line"));
				ERR_CONTINUE(!warn.has("leftmost_column"));
				ERR_CONTINUE(!warn.has("rightmost_column"));
				ERR_CONTINUE(!warn.has("code"));
				ERR_CONTINUE(!warn.has("string_code"));
				ERR_CONTINUE(!warn.has("message"));
				Warning swarn;
				swarn.start_line = warn["start_line"];
				swarn.end_line = warn["end_line"];
				swarn.leftmost_column = warn["leftmost_column"];
				swarn.rightmost_column = warn["rightmost_column"];
				swarn.code = warn["code"];
				swarn.string_code = warn["string_code"];
				swarn.message = warn["message"];
				r_warnings->push_back(swarn);
			}
		}
		if (r_safe_lines != nullptr && ret.has("safe_lines")) {
			PackedInt32Array safe_lines = ret["safe_lines"];
			for (int i = 0; i < safe_lines.size(); i++) {
				r_safe_lines->insert(safe_lines[i]);
			}
		}
		return ret["valid"];
	}
	EXBIND1RC(String, validate_path, const String &)
	GDVIRTUAL0RC(Object *, _create_script)
	Script *create_script() const override {