build: update gradle, dependencies

Change-Id: I6e7043298a6776334ac3fcf1157e9beb05db71e7
diff --git a/ring-android/build.gradle b/ring-android/build.gradle
index dd83ade..0855d0c 100644
--- a/ring-android/build.gradle
+++ b/ring-android/build.gradle
@@ -4,7 +4,7 @@
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.0'
+        classpath 'com.android.tools.build:gradle:3.4.1'
         classpath 'com.google.gms:google-services:4.2.0'
     }
 }