Update AGP and GS plugin versions. (#638)

Author: allisonbm92

root-project.gradle

@@ -26,12 +26,12 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.1'
+        classpath 'com.android.tools.build:gradle:3.4.2'
         classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.8'
         classpath 'net.ltgt.gradle:gradle-errorprone-plugin:0.7.1'
         classpath 'org.jsoup:jsoup:1.11.2'
         classpath 'gradle.plugin.com.github.sherter.google-java-format:google-java-format-gradle-plugin:0.8'
-        classpath 'com.google.gms:google-services:4.0.2'
+        classpath 'com.google.gms:google-services:4.3.0'
         classpath 'me.tatarka:gradle-retrolambda:3.7.1'
         classpath 'digital.wup:android-maven-publish:3.6.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"