feat(vault): update the API

#### vault:v1

The following keys were added:
- schemas.MailExportOptions.properties.useNewExport.description
- schemas.MailExportOptions.properties.useNewExport.type

discovery/vault-v1.json

@@ -1193,7 +1193,7 @@
       }
     }
   },
-  "revision": "20211101",
+  "revision": "20220222",
   "rootUrl": "https://vault.googleapis.com/",
   "schemas": {
     "AccountCount": {
@@ -2107,6 +2107,10 @@
         "showConfidentialModeContent": {
           "description": "To export confidential mode content, set to **true**.",
           "type": "boolean"
+        },
+        "useNewExport": {
+          "description": "To use the new export system, set to **true**.",
+          "type": "boolean"
         }
       },
       "type": "object"

src/apis/vault/README.md

@@ -2,7 +2,7 @@
 
 # vault
 
-> Archiving and eDiscovery for G Suite.
+> Retention and eDiscovery for Google Workspace. To work with Vault resources, the account must have the [required Vault privileges](https://support.google.com/vault/answer/2799699) and access to the matter. To access a matter, the account must have created the matter, have the matter shared with them, or have the **View All Matters** privilege. For example, to download an export, an account needs the **Manage Exports** privilege and the matter shared with them.
 
 ## Installation
 

src/apis/vault/v1.ts

@@ -766,6 +766,10 @@ export namespace vault_v1 {
      * To export confidential mode content, set to **true**.
      */
     showConfidentialModeContent?: boolean | null;
+    /**
+     * To use the new export system, set to **true**.
+     */
+    useNewExport?: boolean | null;
   }
   /**
    * Additional options for Gmail search