Add php 8.5 to tests workflow as preperation

Author: SenseException

.github/workflows/tests.yml

@@ -21,6 +21,9 @@ jobs:
          - php-versions: "8.4"
            composer-option: "--ignore-platform-reqs"
            continue-on-error: true
+         - php-versions: "8.5"
+           composer-option: "--ignore-platform-reqs"
+           continue-on-error: true
 
     steps:
     - uses: "actions/checkout@v4"