(Sweet32) Cipher Suite Remediation

We had a Nessus vulnerability scanning across our lower environment. We use Rancher Version 2.6.3 in the lower environment. I was able to get a solution as to fix this (Rancher rke k8s using TLS weak cipher suites issue - #4 by roy) but for some reasons, I couldn’t edit/view the yaml configuration of the cluster in the lower environment to add the necessary argument to where it is needed.
Our production environment is running on Rancher 2.5.3. For that, I was able to edit the yaml configuration for that but that doesn’t seem to be the case with version 2.6.3.
I will be glad if I can get any help from anyone with who might have gone through this issue before.