chore(alertcenter): update the api

Author: yoshi-automation

googleapiclient/discovery_cache/documents/alertcenter.v1beta1.json

@@ -423,7 +423,7 @@
       }
     }
   },
-  "revision": "20220127",
+  "revision": "20220131",
   "rootUrl": "https://alertcenter.googleapis.com/",
   "schemas": {
     "AccountSuspensionDetails": {
@@ -804,7 +804,8 @@
             "RESOLVED",
             "FALSE_POSITIVE",
             "PARTIALLY_RESOLVED",
-            "MERGED"
+            "MERGED",
+            "DOWNGRADED"
           ],
           "enumDescriptions": [
             "Status is unspecified.",
@@ -813,7 +814,8 @@
             "The incident has been resolved.",
             "Further assessment indicated no customer impact.",
             "The incident has been partially resolved.",
-            "The incident was merged into a parent."
+            "The incident was merged into a parent.",
+            "The incident has lower impact than initially anticipated."
           ],
           "type": "string"
         }
@@ -1289,7 +1291,7 @@
       "id": "MergeInfo",
       "properties": {
         "newAlertId": {
-          "description": "New alert ID. Reference the [google.apps.alertcenter.Alert] with this ID for the current state.",
+          "description": "Optional. New alert ID. Reference the [google.apps.alertcenter.Alert] with this ID for the current state.",
           "type": "string"
         },
         "newIncidentTrackingId": {