[enterprise-4.9] Issue in file logging/cluster-logging-external.adoc #42020

GitHub issue:

https://github.com/openshift/openshift-docs/issues/42020 

Which section(s) is the issue in?

This article is missing a section for version 5.3 of the Openshift Logging operator

What needs fixing?

Needs to be updated to include "Supported log data output types in OpenShift Logging 5.3"