OSDOCS-14483 added zero trust attributes to the common-attributes file

Author: wgabor0427

_attributes/common-attributes.adoc

@@ -381,4 +381,8 @@ endif::openshift-origin[]
 :rhoai-diy: Red{nbsp}Hat OpenShift AI Self-Managed
 :rhoai-cloud: Red{nbsp}Hat OpenShift AI Cloud Service
 :ai-first: artificial intelligence (AI)
-//RHEL AI attribute listed with RHEL family
+//RHEL AI attribute listed with RHEL family
+//zero trust workload identity manager
+:zero-trust-full: zero trust workload identity manager for Red{nbsp}Hat OpenShift
+:spiffe-full: Secure Production Identity Framework for Everyone (SPIFFE)
+:svid-full: SPIFFE Verifiable Identity Document (SVID)