ci: use correct php version

Author: arnoson

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.4'
+          php-version: '8.3'
 
       - name: Install composer Dependencies
         run: composer install --prefer-dist --no-progress