Add PHP 8.2 to build matrix (martin-helmich#50)

Author: martin-helmich

.github/workflows/php.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     strategy:
       matrix:
-        php: ['8.0', '8.1']
+        php: ['8.0', '8.1', '8.2']
         phpunit: ['8.0', '9.0']
         composer-arg: ['']
     runs-on: ubuntu-latest