Upgrade workflow version of flutter to 3.16.0

Author: aryan-more

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
       - name: Install Flutter
         uses: subosito/flutter-action@v2
         with:
-          flutter-version: "3.10.6"
+          flutter-version: "3.16.0"
           channel: "stable"
 
       # Install dependencies