Use PHP 8.4 in GH Actions

Author: emodric

.github/workflows/static_analysis.yml

@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v6
       - uses: shivammathur/setup-php@v2
         with:
-          php-version: '8.3'
+          php-version: '8.4'
           coverage: none
 
       # Install Flex as a global dependency to enable usage of extra.symfony.require