Version 8.2.21

Promote version 8.2.21-dev to 8.2.21.

Release branch for Android Studio 2023.1.1 (Hedgehog) / AGP 8.2.

Change-Id: I50a02264e8a205b72de07eef127d1c2474ed151a
diff --git a/src/main/java/com/android/tools/r8/Version.java b/src/main/java/com/android/tools/r8/Version.java
index ba1d508..231fb38 100644
--- a/src/main/java/com/android/tools/r8/Version.java
+++ b/src/main/java/com/android/tools/r8/Version.java
@@ -13,7 +13,7 @@
 
   // 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 = "8.2.21-dev";
+  public static final String LABEL = "8.2.21";
 
   private Version() {
   }