Add a storage class for DeepColdArchive

Author: zhuxiaolong37

src/main/java/com/aliyun/oss/model/StorageClass.java

@@ -44,6 +44,11 @@ public enum StorageClass {
      */
     ColdArchive("ColdArchive"),
 
+    /**
+     * DeepColdArchive
+     */
+    DeepColdArchive("DeepColdArchive"),
+
     /**
      * Unknown
      */