fix: Get support libs from maven

Fetch support librararies from google’s maven rathen than from jcenter.

Some support libraries, for example `support-v4.jar `, are removed from jcenter, and can be found in Maven.

https://developer.android.com/topic/libraries/support-library/setup

packages/flagship/android/build.gradle

@@ -15,8 +15,8 @@ buildscript {
 allprojects {
     repositories {
         mavenLocal()
-        jcenter()
         maven { url 'https://maven.google.com' }
+        jcenter()
         maven {
             // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
             url "$rootDir/../node_modules/react-native/android"