Improve the message posted when a deployment to gprd starts
The coordinated pipeline was re-ordered on &608 (closed) to account for mixed-testing deployment. As a result, the gstg and gprd production are performed almost simultaneously: After the manual promotion, the gstg deployment starts, and then 30 minutes later, the gprd deployment initiates, only if the production checks allow it.
Before the gprd deployment starts, a note on the release task issue is posted, e.g. gitlab-org/release/tasks#3515 (comment 879754112). The reason for this note is to keep track of the deployments performed to production, to be later used for compliance and audit purposes.
Proposal
Update the message posted in the release issue to also mention the gstg and gprd deployment are happening simultaneously.