Expose creation/update times for issue links
What does this MR do?
The issue links API now exposes the fields created_at and updated_at for each issue link. This allows clients to determine when an issue link is created or updated.
See #283948 (closed) and gitlab-com/gl-infra/delivery#1250 (closed) for more information.
Does this MR meet the acceptance criteria?
Conformity
Edited by Yorick Peterse