ci: add tests for PHP 8.5 (#164)

* ci: add tests for PHP 8.5

* Update GitHub Actions checkout action version

Author: Chris53897

.github/workflows/test.yml

@@ -58,9 +58,14 @@ jobs:
             RUN_PHPSTAN: true
             RUN_PSALM: false
             RUN_BENCHMARK: false
+          - PHP_VERSION: "8.5"
+            CODE_COVERAGE: false
+            RUN_PHPSTAN: true
+            RUN_PSALM: false
+            RUN_BENCHMARK: false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Cache Docker Image
         id: cache-docker-image