fix(client-analytics): add missing updatedAt attribute

Author: kombucha

packages/client-analytics/src/types/GetABTestResponse.ts

@@ -26,6 +26,11 @@ export type GetABTestResponse = {
    */
   createdAt: string;
 
+  /**
+   * The ab test updated date.
+   */
+  updatedAt: string;
+
   /**
    * The ab test unique identifier.
    */