Merge pull request #138 from maksimovic/php85

Add PHP 8.5 to CI test matrix

Author: ackintosh

.github/workflows/tests.yml

@@ -36,6 +36,7 @@ jobs:
           - "8.2"
           - "8.3"
           - "8.4"
+          - "8.5"
         composer-opts:
           - ""
           - --prefer-lowest --prefer-stable