BUG: Gradle build failure in latest version of Flutter

### Is there an existing issue for this?

- [x] I have searched the existing issues

### What happened?

Running `flutter run` leads to a build fail
**REASON:** Project's Gradle version (8.4.0) is lower than Flutter's minimum supported version of 8.7.0.

**Fix:** Update/upgrade the Gradle plugin to 9.1.0 and fix any dependency issue that might arise from version conflict.

### Record

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- [ ] I'm a GSSOC'24 contributor
- [x] I want to work on this issue