Add PHP8.2 and 8.3 to PHPUnit GitHub Action.

Author: Potherca

.github/workflows/tests.yml

@@ -19,7 +19,7 @@ jobs:
 
     strategy:
       matrix:
-        php: ['8.0', '8.1']
+        php: [ '8.0', '8.1', '8.2', '8.3', ]
 
     steps:
       - uses: actions/checkout@v3