Merge pull request #85822 from lahinson/ocpbugs-38910-etcd-ignition

[OCPBUGS-38910]: Update ignition version in 4.14+ docs for etcd

Author: lahinson

modules/move-etcd-different-disk.adoc

@@ -100,7 +100,7 @@ metadata:
 spec:
   config:
     ignition:
-      version: 3.2.0
+      version: 3.4.0
     storage:
       files:
         - path: /etc/find-secondary-device