chore: add PHP 8.4 to CI configuration matrix

Author: pforesi

.github/workflows/ci.yml

@@ -7,11 +7,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-version: ['8.2', '8.3']
+        php-version: ['8.2', '8.3', '8.4']
         symfony-version: ['^6.4', '^7.0']
-        exclude:
-          - php-version: '8.3'
-            symfony-version: '^6.4'
     steps:
       - uses: actions/checkout@master
       - uses: shivammathur/setup-php@v2