update version for migration

Author: dinitri

src/android/AckDatabase.java

@@ -8,7 +8,7 @@
 import androidx.room.TypeConverters;
 import androidx.work.Data;
 
-@Database(entities = {UploadEvent.class}, version = 3)
+@Database(entities = {UploadEvent.class}, version = 5)
 @TypeConverters(value = {Data.class})
 public abstract class AckDatabase extends RoomDatabase {
     private static AckDatabase instance;