Added 8.3 in main.yml

Author: manjusha729

.github/workflows/main.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['8.1', '8.2']
+        php-versions: ['8.1', '8.2', '8.3']
     steps:
       - uses: actions/checkout@v2