### 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 (!OS::get_singleton()->get_resource_dir().is_empty()) {
		
		
		resource_path = OS::get_singleton()->get_resource_dir().replace("\\", "/");
		if (!resource_path.is_empty() && resource_path[resource_path.length() - 1] == '/') {
			resource_path = resource_path.substr(0, resource_path.length() - 1); 
		}
	}
	
	if (FileAccessNetworkClient::get_singleton()) {
		Error err = _load_settings_text_or_binary("res://project.godot", "res://project.binary");
		if (err == OK && !p_ignore_override) {
			
			_load_settings_text("res://override.cfg");
		}
		return err;
	}
	
	if (!p_main_pack.is_empty()) {
		bool ok = _load_resource_pack(p_main_pack);
		ERR_FAIL_COND_V_MSG(!ok, ERR_CANT_OPEN, "Cannot open resource pack '" + p_main_pack + "'.");
		Error err = _load_settings_text_or_binary("res://project.godot", "res://project.binary");
		if (err == OK && !p_ignore_override) {