ci: test use php8.4 (#708)

Author: jkowalleck

.github/workflows/test_php.yml

@@ -31,7 +31,7 @@ jobs:
         # see https://github.com/shivammathur/setup-php
         uses: shivammathur/setup-php@v2
         with:
-          php-version: "8.1"
+          php-version: "8.4"
           tools: composer:v2
       - name: Install Depenencies
         run: composer install