### Godot version

v4.1.stable.official [970459615]  < Steam

### System information

Godot v4.1.stable - Debian GNU/Linux trixie/sid trixie - Vulkan (Mobile) - dedicated NVIDIA GeForce GTX 1060 (nvidia) - Intel(R) Core(TM) i5-8400 CPU @ 2.80GHz (6 Threads)

### Issue description

After being upgraded to 4.1 via Steam (before any release announcement even! The speed!), I saw the warning marker against my game in the project manager, and noticed that the tooltip wasn't all that helpful:

![Screenshot_20230706_121443](https://github.com/godotengine/godot/assets/441188/7e62f67c-664f-4f5f-8f84-0cd0084679a6)

It seems to think that the old version number is a deprecated feature? :/

### Steps to reproduce

1. Have a project from Godot 4.0
2. Upgrade Godot to 4.1
3. Open project manager

Alternatively:
1. Create a new project in 4.1
2. Quit Godot
3. Edit the `project.godot`'s `config/features` to read `4.0` instead of `4.1`
4. Open project manager

### Minimal reproduction project

[default.zip](https://github.com/godotengine/godot/files/11967512/default.zip)

String conf = p_path.path_join("project.godot");
	bool grayed = false;
	bool missing = false;
	Ref<ConfigFile> cf = memnew(ConfigFile);
	Error cf_err = cf->load(conf);
	int config_version = 0;
	String project_name = TTR("Unnamed Project");
	if (cf_err == OK) {
		String cf_project_name = cf->get_value("application", "config/name", "");
		if (!cf_project_name.is_empty()) {
			project_name = cf_project_name.xml_unescape();
		}
		config_version = (int)cf->get_value("", "config_version", 0);
	}
	if (config_version > ProjectSettings::CONFIG_VERSION) {
		// Comes from an incompatible (more recent) Godot version, gray  out.
		grayed = true;
	}