fix(ci): use index.php as router for PHP built-in server

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

.github/workflows/playwright.yml

@@ -188,7 +188,7 @@ jobs:
 
       - name: Start PHP built-in server
         run: |
-          php -S localhost:8080 &
+          php -S localhost:8080 index.php &
           # Wait for server to become available
           timeout 30 bash -c 'until curl -s http://localhost:8080/status.php > /dev/null; do sleep 1; done'
           echo "Nextcloud is ready at http://localhost:8080"