Update serial UID

Author: DomGarguilo

server/manager/src/main/java/org/apache/accumulo/manager/tableOps/tableImport/ImportedTableInfo.java

@@ -27,7 +27,7 @@
 
 class ImportedTableInfo implements Serializable {
 
-  private static final long serialVersionUID = 2L;
+  private static final long serialVersionUID = 3L;
 
   public String user;
   public String tableName;