feat: add PHP 8.4 (#225)

Author: rancoud

.github/workflows/test.yml

@@ -27,6 +27,7 @@ jobs:
           - '8.1'
           - '8.2'
           - '8.3'
+          - '8.4'
 
     steps:
       - name: Checkout
@@ -46,4 +47,4 @@ jobs:
         if: success()
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-          file: ./coverage/clover.xml
+          files: ./coverage/clover.xml