Test for newer PHP versions

Author: derickr

.github/workflows/ci.yml

@@ -16,11 +16,11 @@ jobs:
       # Keys:
       # - experimental: Whether the build is "allowed to fail".
       matrix:
-        php: ['7.2', '7.3', '7.4', '8.0']
+        php: ['7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
         experimental: [false]
 
         include:
-          - php: '8.1'
+          - php: '8.5'
             experimental: true
 
     name: "PHP: ${{ matrix.php }}"