test on php 8.4

Author: bytestream

.github/workflows/integration.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        php: ['8.0', '8.1', '8.2', '8.3']
+        php: ['8.0', '8.1', '8.2', '8.3', '8.4']
     steps:
     - uses: actions/checkout@master