OADP-3181: Update attributes for OADP 1.3.1

Signed-off-by: A.Arnold <anarnold@redhat.com>

Author: anarnold97

_attributes/common-attributes.adoc

@@ -46,6 +46,7 @@ endif::openshift-origin[]
 :oadp-first: OpenShift API for Data Protection (OADP)
 :oadp-full: OpenShift API for Data Protection
 :oadp-short: OADP
+:oadp-version: 1.3.1
 :oc-first: pass:quotes[OpenShift CLI (`oc`)]
 :product-registry: OpenShift image registry
 :rh-storage-first: Red Hat OpenShift Data Foundation