fix(testing): update the API

#### testing:v1

The following keys were changed:
- schemas.Date.description

Author: yoshi-automation

discovery/testing-v1.json

@@ -282,7 +282,7 @@
       }
     }
   },
-  "revision": "20220301",
+  "revision": "20220308",
   "rootUrl": "https://testing.googleapis.com/",
   "schemas": {
     "Account": {
@@ -851,7 +851,7 @@
       "type": "object"
     },
     "Date": {
-      "description": "Represents a whole or partial calendar date, such as a birthday. The time of day and time zone are either specified elsewhere or are insignificant. The date is relative to the Gregorian Calendar. This can represent one of the following: * A full date, with non-zero year, month, and day values * A month and day, with a zero year (e.g., an anniversary) * A year on its own, with a zero month and a zero day * A year and month, with a zero day (e.g., a credit card expiration date) Related types: * google.type.TimeOfDay * google.type.DateTime * google.protobuf.Timestamp",
+      "description": "Represents a whole or partial calendar date, such as a birthday. The time of day and time zone are either specified elsewhere or are insignificant. The date is relative to the Gregorian Calendar. This can represent one of the following: * A full date, with non-zero year, month, and day values. * A month and day, with a zero year (for example, an anniversary). * A year on its own, with a zero month and a zero day. * A year and month, with a zero day (for example, a credit card expiration date). Related types: * google.type.TimeOfDay * google.type.DateTime * google.protobuf.Timestamp",
       "id": "Date",
       "properties": {
         "day": {

src/apis/testing/v1.ts

@@ -518,7 +518,7 @@ export namespace testing_v1 {
     value?: string | null;
   }
   /**
-   * Represents a whole or partial calendar date, such as a birthday. The time of day and time zone are either specified elsewhere or are insignificant. The date is relative to the Gregorian Calendar. This can represent one of the following: * A full date, with non-zero year, month, and day values * A month and day, with a zero year (e.g., an anniversary) * A year on its own, with a zero month and a zero day * A year and month, with a zero day (e.g., a credit card expiration date) Related types: * google.type.TimeOfDay * google.type.DateTime * google.protobuf.Timestamp
+   * Represents a whole or partial calendar date, such as a birthday. The time of day and time zone are either specified elsewhere or are insignificant. The date is relative to the Gregorian Calendar. This can represent one of the following: * A full date, with non-zero year, month, and day values. * A month and day, with a zero year (for example, an anniversary). * A year on its own, with a zero month and a zero day. * A year and month, with a zero day (for example, a credit card expiration date). Related types: * google.type.TimeOfDay * google.type.DateTime * google.protobuf.Timestamp
    */
   export interface Schema$Date {
     /**