ND-609 no changes to content, review date modified and period reduced (…

…#828)

Period reduced as the content of this page is fine, but we need to run firedrills on DHCP and NACS to confirm their validity.

source/runbooks/disaster-recovery.html.md.erb

@@ -1,8 +1,8 @@
 ---
 owner_slack: "#nvvs-devops"
 title: Disaster recovery
-last_reviewed_on: 2024-04-18
-review_in: 6 months
+last_reviewed_on: 2024-11-29
+review_in: 3 months
 ---
 # Disaster recovery
 This runbook outlines the steps to take in the event of a major incident and links to individual product recovery