Fix gradle build of Launcher3

Test: build, run

Change-Id: I121fe3174bdb2292ae8f08ab610da2bac01251b3
diff --git a/gradle.properties b/gradle.properties
index a77f52a..7a51375 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,11 +2,11 @@
 android.useAndroidX = true
 android.enableJetifier = true
 
-ANDROID_X_VERSION=1.0.0-beta01
+ANDROID_X_VERSION=1+
 
-GRADLE_CLASS_PATH=com.android.tools.build:gradle:3.3.0
+GRADLE_CLASS_PATH=com.android.tools.build:gradle:3.5.1
 
-PROTOBUF_CLASS_PATH=com.google.protobuf:protobuf-gradle-plugin:0.8.6
+PROTOBUF_CLASS_PATH=com.google.protobuf:protobuf-gradle-plugin:0.8.8
 PROTOBUF_DEPENDENCY=com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-7
 
 BUILD_TOOLS_VERSION=28.0.3