update php version

Author: ph7jack

.github/workflows/tests.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Setup PHP, with composer and extensions
         uses: shivammathur/setup-php@v2
         with:
-          php-version: "8.3"
+          php-version: "8.4"
           tools: composer:v2
           coverage: none