Use PHP 8.4 for workflow

Author: TomHAnderson

.github/workflows/ldog.yml

@@ -34,7 +34,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['8.3']
+        php-versions: ['8.4']
     steps:
       - name: Checkout
         uses: actions/checkout@v4