### 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)
String path = cd.path_join(p_dir->files[i]->file);
		if (import_extensions.has(p_dir->files[i]->file.get_extension().to_lower())) {
			
			uint64_t mt = FileAccess::get_modified_time(path);
			bool reimport = false;
			if (mt != p_dir->files[i]->modified_time) {
				reimport = true; 
			} else if (!FileAccess::exists(path + ".import")) {
				reimport = true; 
			} else {
				uint64_t import_mt = FileAccess::get_modified_time(path + ".import");
				if (import_mt != p_dir->files[i]->import_modified_time) {
					reimport = true;
				} else if (_test_for_reimport(path, true)) {
					reimport = true;
				}
			}
			if (reimport) {
				ItemAction ia;
				ia.action = ItemAction::ACTION_FILE_TEST_REIMPORT;
				ia.dir = p_dir;
				ia.file = p_dir->files[i]->file;
				scan_actions.push_back(ia);
			}
		} else if (ResourceCache::has(path)) { 
			uint64_t mt = FileAccess::get_modified_time(path);
			if (mt != p_dir->files[i]->modified_time) {
				p_dir->files[i]->modified_time = mt; 
				ItemAction ia;
				ia.action = ItemAction::ACTION_FILE_RELOAD;