Adding "renew" property to savingsPlanOrderAlias response (Azure#24282)

Author: gaoyp830

specification/billingbenefits/resource-manager/Microsoft.BillingBenefits/stable/2022-11-01/billingbenefits.json

@@ -743,6 +743,9 @@
         },
         "commitment": {
           "$ref": "#/definitions/Commitment"
+        },
+        "renew": {
+          "$ref": "#/definitions/Renew"
         }
       }
     },