fix(people): update the API

#### people:v1

The following keys were changed:
- resources.otherContacts.methods.list.parameters.sources.description

discovery/people-v1.json

@@ -424,7 +424,7 @@
               "type": "boolean"
             },
             "sources": {
-              "description": "Optional. A mask of what source types to return. Defaults to READ_SOURCE_TYPE_CONTACT if not set.",
+              "description": "Optional. A mask of what source types to return. Defaults to READ_SOURCE_TYPE_CONTACT if not set. Possible values for this field are: * READ_SOURCE_TYPE_CONTACT * READ_SOURCE_TYPE_CONTACT,READ_SOURCE_TYPE_PROFILE Specifying READ_SOURCE_TYPE_PROFILE without specifying READ_SOURCE_TYPE_CONTACT is not permitted.",
               "enum": [
                 "READ_SOURCE_TYPE_UNSPECIFIED",
                 "READ_SOURCE_TYPE_PROFILE",
@@ -1172,7 +1172,7 @@
       }
     }
   },
-  "revision": "20220321",
+  "revision": "20220504",
   "rootUrl": "https://people.googleapis.com/",
   "schemas": {
     "Address": {

src/apis/people/v1.ts

@@ -2946,7 +2946,7 @@ export namespace people_v1 {
      *     readMask: 'placeholder-value',
      *     // Optional. Whether the response should return `next_sync_token` on the last page of results. It can be used to get incremental changes since the last request by setting it on the request `sync_token`. More details about sync behavior at `otherContacts.list`.
      *     requestSyncToken: 'placeholder-value',
-     *     // Optional. A mask of what source types to return. Defaults to READ_SOURCE_TYPE_CONTACT if not set.
+     *     // Optional. A mask of what source types to return. Defaults to READ_SOURCE_TYPE_CONTACT if not set. Possible values for this field are: * READ_SOURCE_TYPE_CONTACT * READ_SOURCE_TYPE_CONTACT,READ_SOURCE_TYPE_PROFILE Specifying READ_SOURCE_TYPE_PROFILE without specifying READ_SOURCE_TYPE_CONTACT is not permitted.
      *     sources: 'placeholder-value',
      *     // Optional. A sync token, received from a previous response `next_sync_token` Provide this to retrieve only the resources changed since the last request. When syncing, all other parameters provided to `otherContacts.list` must match the first call that provided the sync token. More details about sync behavior at `otherContacts.list`.
      *     syncToken: 'placeholder-value',
@@ -3222,7 +3222,7 @@ export namespace people_v1 {
      */
     requestSyncToken?: boolean;
     /**
-     * Optional. A mask of what source types to return. Defaults to READ_SOURCE_TYPE_CONTACT if not set.
+     * Optional. A mask of what source types to return. Defaults to READ_SOURCE_TYPE_CONTACT if not set. Possible values for this field are: * READ_SOURCE_TYPE_CONTACT * READ_SOURCE_TYPE_CONTACT,READ_SOURCE_TYPE_PROFILE Specifying READ_SOURCE_TYPE_PROFILE without specifying READ_SOURCE_TYPE_CONTACT is not permitted.
      */
     sources?: string[];
     /**