Upgrade Android Gradle plugin to the latest version. Fixes T1060

Summary:  - Bumped version number for the Android Gradle plugin in the `app` and `data` modules

Test Plan: No Test Plan

Reviewers: dkobia, PapaLee

Subscribers: rjmackay, shadowhand

Maniphest Tasks: T1060

Differential Revision: https://phabricator.ushahidi.com/D477