Run tests on PHP 8.3

Author: ishanvyas22

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.4', '8.0', '8.1', '8.2']
+        php-versions: ['7.4', '8.0', '8.1', '8.2', '8.3']
         db-type: [mysql]
         prefer-lowest: ['', 'prefer-lowest']