### Godot version

4.0 beta (e1648b3327431a09cc9498663fac483275eb711d)

### System information

Mageia 9, Linux

### Issue description

When exporting a project with no attached script (or with only a builtin GDScript), the following error is printed:
```
ERROR: Can't open file from path 'res://.godot/global_script_class_cache.cfg'.
   at: get_file_as_bytes (core/io/file_access.cpp:699)
```

And while the export succeeds, when running the project, it prints:
```
ERROR: Couldn't find the given section "" and key "list", and no default was given.
   at: get_value (core/io/config_file.cpp:86)
```

We should ensure that this file is always created, regardless of whether there are scripts to parse for class names or not. It should always contain at least `list=[]`.

### Steps to reproduce

- Create new project
- Create main scene with no script
- Export

### Minimal reproduction project

[NewProj.zip](https://github.com/godotengine/godot/files/10547125/NewProj.zip)
if (InputMap::get_singleton()) {
		HashMap<String, List<Ref<InputEvent>>> builtins = InputMap::get_singleton()->get_builtins();
		for (KeyValue<String, List<Ref<InputEvent>>> &E : builtins) {
			Array events;
			
			for (List<Ref<InputEvent>>::Element *I = E.value.front(); I; I = I->next()) {
				events.push_back(I->get());
			}
			Dictionary action;
			action["deadzone"] = Variant(0.5f);
			action["events"] = events;
			String action_name = "input/" + E.key;
			GLOBAL_DEF_INTERNAL(action_name, action);
			input_presets.push_back(action_name);
		}
	}
}
ProjectSettings::ProjectSettings() {