fixing version number for 2.x.x branch after cherry-pick

Author: emawby

iOS_SDK/OneSignalSDK/Source/OSMigrationController.m

@@ -84,7 +84,7 @@ - (void)migrateToVersion_02_14_00_AndGreater {
 // that was saved as a dictionary and not CodeableData. Try to detect if that is the case
 // and save it is as CodeableData instead.
 - (void)migrateIAMRedisplayCache {
-    let iamRedisplayCacheFixVersion = 30203;
+    let iamRedisplayCacheFixVersion = 21604;
     long sdkVersion = [OneSignalUserDefaults.initShared getSavedIntegerForKey:OSUD_CACHED_SDK_VERSION defaultValue:0];
     if (sdkVersion >= iamRedisplayCacheFixVersion)
         return;