OCPBUGS#31537: Amend ODF must-gather image name

Author: kowen-rh

modules/gathering-data-specific-features.adoc

@@ -38,7 +38,7 @@ ifndef::openshift-origin[]
 |Data collection for the {mtc-full}.
 
 ifndef::openshift-rosa,openshift-dedicated[]
-|`registry.redhat.io/odf4/ocs-must-gather-rhel8:v<installed_version_ODF>`
+|`registry.redhat.io/odf4/odf-must-gather-rhel9:v<installed_version_ODF>`
 |Data collection for {rh-storage-first}.
 endif::openshift-rosa,openshift-dedicated[]