Changed rhel version for LSO must-gather container image from 8 to 9

Author: reivaj84

modules/gathering-data-specific-features.adoc

@@ -49,7 +49,7 @@ endif::openshift-rosa,openshift-dedicated[]
 |Data collection for OpenShift Shared Resource CSI Driver.
 
 ifndef::openshift-rosa,openshift-dedicated[]
-|`registry.redhat.io/openshift4/ose-local-storage-mustgather-rhel8:v<installed_version_LSO>`
+|`registry.redhat.io/openshift4/ose-local-storage-mustgather-rhel9:v<installed_version_LSO>`
 |Data collection for Local Storage Operator.
 
 |`registry.redhat.io/openshift-sandboxed-containers/osc-must-gather-rhel8:v<installed_version_sandboxed_containers>`