Add Security Manager Team

Adds a team as a security manager for an organization. For more information, see "[Managing security for an organization](https://docs.github.com/[email protected]/organizations/managing-peoples-access-to-your-organization-with-roles/managing-security-managers-in-your-organization) for an organization." The authenticated user must be an administrator for the organization to use this endpoint. OAuth app tokens and personal access tokens (classic) need the `write:org` scope to use this en...