Upgrade symfony from 7 to 8. Remove cache since it is now faster to open website.

src/Controller/PromosController.php

@@ -11,10 +11,6 @@ final class PromosController extends BaseController
     #[Route('/promos/{promo?}', name: 'app_promos')]
     public function __invoke(?string $promo): Response
     {
-        if ($this->cache->getItem('list_promos')->isHit()) {
-            return $this->render('productList.html.twig', ['listType' => 'promos' . $promo]);
-        }
-
         $products = Product::when(is_null($promo), fn($q) => $q->whereRaw('priceCurrent < productStandardPrice'))
             ->orderByDesc('starred')
             ->orderByDesc('created_by')