Update Android build.gradle dependencies

[ollyc2015]

compile has now been deprecated in Android, are you able to do the below update? This will fix build errors when trying to open a React Native project inside Android Studio, so the build will succeed. Also, so we can compile Java 9+ source, please set compileSdkVersion to 30 or above. Thanks.

dependencies {
    implementation 'com.facebook.react:react-native:0.19.+'
    implementation 'com.segment.analytics.android:analytics:4+'
}