feat: test php v8.4 as well

Author: totalimmersion

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       max-parallel: 1
       matrix:
-        php-versions: ['8.1', '8.2', '8.3']
+        php-versions: ['8.1', '8.2', '8.3', '8.4']
     steps:
       - name: Checkout
         uses: actions/checkout@v3