[10.x] Clears resolved instance of Vite when using withoutVite

[nunomaduro]

This pull request addresses an issue that may happen when the Vite facade gets used before calling $this->withoutVite() in your test suite. As example, if the user have the code

// AppServiceProvider@boot method...
Vite::useScriptTagAttributes([
    'crossorigin' => 'anonymous',
]);

// TestCase...
$this->withoutVite();

Vite::asset('foo.png'); // this fails with `Vite manifest not found` as Facade is still working with previous instance of Vite, and not the fake one.