feat(chat): update the api

#### chat:v1

The following keys were deleted:
- schemas.GoogleAppsCardV1CardFixedFooter.properties.widgets (Total Keys: 2)
- schemas.GoogleAppsCardV1FooterWidget (Total Keys: 7)
- schemas.Message.properties.createTime.readOnly (Total Keys: 1)

Author: yoshi-automation

docs/dyn/chat_v1.spaces.members.html

@@ -178,7 +178,7 @@ <h3>Method Details</h3>
   <pre>Returns details about a membership. For an example, see [Get a membership](https://developers.google.com/chat/api/guides/v1/members/get). Requires [authentication](https://developers.google.com/chat/api/guides/auth). Fully supports [service account authentication](https://developers.google.com/chat/api/guides/auth/service-accounts) and [user authentication](https://developers.google.com/chat/api/guides/auth/users). [User authentication](https://developers.google.com/chat/api/guides/auth/users) requires the `chat.memberships` or `chat.memberships.readonly` authorization scope.
 
 Args:
-  name: string, Required. Resource name of the membership to retrieve. Format: `spaces/{space}/members/{member}` (required)
+  name: string, Required. Resource name of the membership to retrieve. To get the app&#x27;s own membership, you can optionally use `spaces/{space}/members/app`. Format: `spaces/{space}/members/{member}` or `spaces/{space}/members/app` (required)
   x__xgafv: string, V1 error format.
     Allowed values
       1 - v1 error format