ci: Add PHP version 8.5 to test matrix

Author: Chris53897

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ubuntu-latest, windows-latest, macos-latest]
-        php-versions: ['8.1', '8.2', '8.3', '8.4']
+        php-versions: ['8.1', '8.2', '8.3', '8.4', '8.5']
     name: "PHP ${{ matrix.php-versions }} test on ${{ matrix.operating-system }}"
     steps:
       - name: Setup PHP