Updated the ci yml file with matrix build

Author: Santhosh-Kumar-2004

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: [3.9, 3.10, 3.11, 3.12]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
 
     steps:
       - name: Checkout code