CNV#54754: HCO version 4.15.9

Author: ousleyp

_attributes/common-attributes.adoc

@@ -102,7 +102,7 @@ endif::[]
 // openshift virtualization (cnv)
 :VirtProductName: OpenShift Virtualization
 :VirtVersion: 4.15
-:HCOVersion: 4.15.8
+:HCOVersion: 4.15.9
 :CNVNamespace: openshift-cnv
 :CNVOperatorDisplayName: OpenShift Virtualization Operator
 :CNVSubscriptionSpecSource: redhat-operators