chore(ci): add PHP 8.5 to build matrix

Author: martin-helmich

.github/workflows/php.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     strategy:
       matrix:
-        php: ['8.1', '8.2', '8.3', '8.4']
+        php: ['8.2', '8.3', '8.4', '8.5']
         phpunit: ['8.0', '9.0', '10.0', '11.0', '12.0']
         exclude:
           - php: '8.1'