Update build.gradle
Update build.gradle

With 1.2.1 version I get "Failed to resolve: io.sentry:sentry-android:1.2.1.
I've search on maven, the lastest version is 1.2.0
This change fix the problem.
getsentry/react-native-sentry,getsentry/react-native-sentry,getsentry/react-native-sentry,getsentry/react-native-sentry,getsentry/react-native-sentry,getsentry/react-native-sentry