Merge branch 'tc-move-t-minus-zero' into 'master'

Move T-0 to "Prevent updates to the primary"

Closes #743

See merge request gitlab-com/migration!186

.gitlab/issue_templates/failover.md

@@ -199,12 +199,7 @@ an hour before the scheduled maintenance window.
         ```
 
 
-# T minus zero (failover day) (__FAILOVER_DATE__) [📁](bin/scripts/02_failover/060_go/)
-
-We expect the maintenance window to last for up to 2 hours, starting from now.
-
-
-## Failover Procedure
+## Failover Call
 
 These steps will be run in a Zoom call. The 🐺 {+ Coordinator +} runs the call,
 asking other roles to perform each step on the checklist at the appropriate
@@ -253,8 +248,13 @@ you see something happening that shouldn't be public, mention it.
           * GCP `gprd`: https://dashboards.gitlab.net/d/SOn6MeNmk/alerts?orgId=1&var-interval=1m&var-environment=gprd&var-alertname=All&var-alertstate=All&var-prometheus=prometheus-01-inf-gprd&var-prometheus_app=prometheus-app-01-inf-gprd
           * Azure Production: https://alerts.gitlab.com/#/alerts?silenced=false&inhibited=false&filter=%7Benvironment%3D%22prd%22%7D
 
-### Prevent updates to the primary
+# T minus zero (failover day) (__FAILOVER_DATE__) [📁](bin/scripts/02_failover/060_go/)
+
+We expect the maintenance window to last for up to 2 hours, starting from now.
 
+## Failover Procedure
+
+### Prevent updates to the primary
 
 #### Phase 1: Block non-essential network access to the primary [📁](bin/scripts/02_failover/060_go/p01)