CORS: Whitelist pagination headers
What does this MR do?
This MR exposes the pagination headers as proposed in https://gitlab.com/gitlab-org/gitlab-ce/issues/28405
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
This MR exposes the pagination headers as proposed in https://gitlab.com/gitlab-org/gitlab-ce/issues/28405