also test on php 8.5

Author: DaanRijpkema

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                php-version: ['8.3', '8.4']
+                php-version: ['8.3', '8.4', '8.5']
 
         steps:
             - name: Checkout code