Merge pull request #75236 from anarnold97/MIG-1549-Attributes-Update-1.8.4

MIG-1549: Attribute Updates for MTC 1.8.4

Author: ShaunaDiaz

_attributes/common-attributes.adoc

@@ -59,7 +59,7 @@ endif::[]
 :mtc-short: MTC
 :mtc-full: Migration Toolkit for Containers
 :mtc-version: 1.8
-:mtc-version-z: 1.8.3
+:mtc-version-z: 1.8.4
 // builds (Valid only in 4.11 and later)
 :builds-v2title: Builds for Red Hat OpenShift
 :builds-v2shortname: OpenShift Builds v2