### 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)
pr.step(reimport_files[i].path.get_file(), i);
					_reimport_file(reimport_files[i].path);
				} else {
					Ref<ResourceImporter> importer = ResourceFormatImporter::get_singleton()->get_importer_by_name(reimport_files[from].importer);
					ERR_CONTINUE(!importer.is_valid());
					importer->import_threaded_begin();
					ImportThreadData tdata;
					tdata.max_index = from;
					tdata.reimport_from = from;
					tdata.reimport_files = reimport_files.ptr();
					WorkerThreadPool::GroupID group_task = WorkerThreadPool::get_singleton()->add_template_group_task(this, &EditorFileSystem::_reimport_thread, &tdata, i - from + 1, -1, false, vformat(TTR("Import resources of type: %s"), reimport_files[from].importer));
					int current_index = from - 1;
					do {
						if (current_index < tdata.max_index) {
							current_index = tdata.max_index;
							pr.step(reimport_files[current_index].path.get_file(), current_index);
						}
						OS::get_singleton()->delay_usec(1);
					} while (!WorkerThreadPool::get_singleton()->is_group_task_completed(group_task));
					WorkerThreadPool::get_singleton()->wait_for_group_task_completion(group_task);
					importer->import_threaded_end();
				}
				from = i + 1;
			}
		} else {
			pr.step(reimport_files[i].path.get_file(), i);
			_reimport_file(reimport_files[i].path);
		}
	}