Version 3.1.22

Bug: 199156218
Change-Id: Ie2cf4f8476cd8447eea787ea2856b0c55beec540
diff --git a/src/main/java/com/android/tools/r8/Version.java b/src/main/java/com/android/tools/r8/Version.java
index f37f718..d0d0adb 100644
--- a/src/main/java/com/android/tools/r8/Version.java
+++ b/src/main/java/com/android/tools/r8/Version.java
@@ -11,7 +11,7 @@
 
   // 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 = "3.1.21";
+  public static final String LABEL = "3.1.22";
 
   private Version() {
   }