Switch to PHP 8.4

Author: lyrixx

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: 8.3
+          php-version: 8.4
           tools: castor
 
       - name: Setup .env