Update security release docs with new process
As described in gitlab-com/gl-infra/delivery#19686 (closed), the security release process is changing to include an automated linking system that will link and unlink security implementation issues from the security release tracking issue automatically.
These changes effect both development and release managers. This MR updates the release docs to reflect the changes.
Related to gitlab-com/gl-infra/delivery#19567 (closed)
Edited by Steve Abrams