Add PHP 8.5 to CI (#1)

Author: ruudk

.github/workflows/ci.yml

@@ -12,7 +12,9 @@ jobs:
 
     strategy:
       matrix:
-        php-version: ['8.4']
+        php-version:
+            - '8.4'
+            - '8.5'
 
     name: PHP ${{ matrix.php-version }}