ci: enable CI for PHP 8.0, 8.1, 8.2

.github/workflows/mediawiki.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php-versions: ['7.4']
+        php-versions: ['8.2', '8.1', '8.0', '7.4']
     steps:
     - name: Cancel Previous Runs
       uses: styfle/cancel-workflow-action@0.12.1