* fix(infra): look up the live office VPN gateway (PLAT-77)
The gateway tagged syslog-server-office is deleted, so the plan cannot find a route target for the office LANs.
* fix(infra): select the office VPN gateway by id (PLAT-77)
A state-and-VPC lookup is not unique once syslog recreates its deleted gateway. The workspace variable pins the gateway that is carrying office traffic.