add php 8.4 support

Author: geisi

.github/workflows/run-tests.yml

@@ -13,7 +13,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest]
-        php: [8.3, 8.2, 8.1]
+        php: [8,4, 8.3, 8.2, 8.1]
         laravel: ["^11.0", "^10.0", "^9.38"]
         stability: [prefer-lowest, prefer-stable]
         include: