test on PHP 8.3

Author: othillo

.github/workflows/ci.yml

@@ -22,6 +22,7 @@ jobs:
           - "8.0"
           - "8.1"
           - "8.2"
+          - "8.3"
         symfony-version: # https://symfony.com/releases
           - "4.4.20"
           - "5.3"
@@ -80,7 +81,7 @@ jobs:
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
         with:
-          php-version: "8.0"
+          php-version: "8.3"
           coverage: "none"
       - name: "Install dependencies with Composer"
         uses: "ramsey/composer-install@v2"