Version 9.0.31

Change-Id: Ie21bfa2dfc6dafe091ca802ed6ab358f9c51dd0d

src/main/java/com/android/tools/r8/Version.java

diff --git a/src/main/java/com/android/tools/r8/Version.java b/src/main/java/com/android/tools/r8/Version.java
index ecd563e..d2ffe7d 100644
--- a/src/main/java/com/android/tools/r8/Version.java
+++ b/src/main/java/com/android/tools/r8/Version.java
@@ -15,7 +15,7 @@
 
   // This field is accessed from release scripts using simple pattern matching.
   // Therefore, changing this field could break our release scripts.
-  public static final String LABEL = "9.0.30";
+  public static final String LABEL = "9.0.31";
 
   private Version() {
   }