[Claude] Add PHP 8.5 to CI test matrix (#15)

Author: mpyw

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        php: [8.2, 8.3, 8.4]
+        php: [8.2, 8.3, 8.4, 8.5]
         lib:
           - laravel: ^13.0.x-dev
           - laravel: ^12.0