Regenerate cloudsupport client (#6005)

Generated in GitHub action: https://togithub.com/googleapis/googleapis/google-api-php-client-services/actions/workflows/codegen.yaml

src/CloudSupport/Resource/CasesAttachments.php

@@ -48,7 +48,9 @@ class CasesAttachments extends \Google\Service\Resource
    *
    * @opt_param int pageSize The maximum number of attachments fetched with each
    * request. If not provided, the default is 10. The maximum page size that will
-   * be returned is 100.
+   * be returned is 100. The size of each page can be smaller than the requested
+   * page size and can include zero. For example, you could request 100
+   * attachments on one page, receive 0, and then on the next page, receive 90.
    * @opt_param string pageToken A token identifying the page of results to
    * return. If unspecified, the first page is retrieved.
    * @return ListAttachmentsResponse