App still uses Android embedding V1.0

**Describe the bug**
While running `flutter pub get` we get an warning that application is still using older version of android embedding.

Assign the issue to me for hacktoberfest. I can migrate the project to Android embedding V2.0

The issue is about migrating the Android embedding from V1 to V2 in a Flutter project. Start by examining the android/app/src/main/AndroidManifest.xml and android/app/build.gradle files to understand the current configuration. Follow the official Flutter migration guide to update the embedding version. Test the change by running the app on an Android device or emulator to ensure the warning is resolved and the pull-to-refresh functionality still works.

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