build: update version

Change-Id: I3fe96c2217fce3cac85e1c852c612efd69fdf530
diff --git a/ring-android/app/build.gradle b/ring-android/app/build.gradle
index 944ac08..cb57da5 100644
--- a/ring-android/app/build.gradle
+++ b/ring-android/app/build.gradle
@@ -9,8 +9,8 @@
     defaultConfig {
         minSdkVersion 21
         targetSdkVersion 29
-        versionCode 231
-        versionName "20200413-01"
+        versionCode 232
+        versionName "20200417-01"
     }
     sourceSets {
         main {