### 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 (uid == ResourceUID::INVALID_ID) {
			uid = ResourceUID::get_singleton()->create_id();
		}
		f->store_line("uid=\"" + ResourceUID::get_singleton()->id_to_text(uid) + "\""); 
		if (err == OK) {
			if (importer->get_save_extension().is_empty()) {
				
			} else if (import_variants.size()) {
				
				for (const String &E : import_variants) {
					String path = base_path.c_escape() + "." + E + "." + importer->get_save_extension();
					f->store_line("path." + E + "=\"" + path + "\"");
					dest_paths.push_back(path);
				}
			} else {
				String path = base_path + "." + importer->get_save_extension();
				f->store_line("path=\"" + path + "\"");
				dest_paths.push_back(path);
			}
		} else {
			f->store_line("valid=false");
		}
		if (meta != Variant()) {
			f->store_line("metadata=" + meta.get_construct_string());
		}
		f->store_line("");
		f->store_line("[deps]\n");
		if (gen_files.size()) {
			Array genf;
			for (const String &E : gen_files) {