Add client-supervior.crt and client-supervior.key to the rotation list about k3s

[ShylajaDevadiga]

Validated using latest commit id 3f906be on master branch

Environment Details

Infrastructure
Cloud EC2 instance

Node(s) CPU architecture, OS, and Version:

cat /etc/os-release
NAME="SLES"
VERSION="15-SP5"
VERSION_ID="15.5"
PRETTY_NAME="SUSE Linux Enterprise Server 15 SP5"

Cluster Configuration:
Single node

Config.yaml:

cat /etc/rancher/k3s/config,yaml
write-kubeconfig-mode: "0644"
cluster-init: true
secrets-encryption: true

Steps to reproduce the issue and validate

1. Copy config.yaml
2. Install k3s
3. Check the certs in the tls dir and the backup dir

Replication results:

ec2-user@ip-172-31-9-108:~> k3s -v
k3s version v1.29.3+k3s1 (8aecc26b)
go version go1.21.8

ec2-user@ip-172-31-9-108:~> sudo diff -sr /var/lib/rancher/k3s/server/tls /var/lib/rancher/k3s/server/tls-1712865517 | grep -i identical |grep supervisor
Files /var/lib/rancher/k3s/server/tls/client-supervisor.crt and /var/lib/rancher/k3s/server/tls-1712865517/client-supervisor.crt are identical
Files /var/lib/rancher/k3s/server/tls/client-supervisor.key and /var/lib/rancher/k3s/server/tls-1712865517/client-supervisor.key are identical
ec2-user@ip-172-31-9-108:~> sudo ls -l /var/lib/rancher/k3s/server/tls|grep supervisor
-rw-r--r-- 1 root root 1181 Apr 11 19:57 client-supervisor.crt
-rw------- 1 root root  227 Apr 11 19:57 client-supervisor.key
ec2-user@ip-172-31-9-108:~> sudo ls -l /var/lib/rancher/k3s/server/tls-1712865517|grep supervisor
-rw-r--r-- 1 root root 1181 Apr 11 19:58 client-supervisor.crt
-rw------- 1 root root  227 Apr 11 19:58 client-supervisor.key

Validation results:

ec2-user@ip-172-31-2-226:~> k3s -v
k3s version v1.29.3+k3s-3f906bee (3f906bee)
go version go1.21.8

ec2-user@ip-172-31-2-226:~> sudo diff -sr /var/lib/rancher/k3s/server/tls /var/lib/rancher/k3s/server/tls-1712865631 | grep -i identical |grep supervisor
ec2-user@ip-172-31-2-226:~> sudo ls -l /var/lib/rancher/k3s/server/tls |grep supervisor
-rw-r--r-- 1 root root 1189 Apr 11 20:00 client-supervisor.crt
-rw------- 1 root root  227 Apr 11 20:00 client-supervisor.key
ec2-user@ip-172-31-2-226:~> sudo ls -l /var/lib/rancher/k3s/server/tls-1712865631 |grep supervisor
-rw-r--r-- 1 root root 1185 Apr 11 20:00 client-supervisor.crt
-rw------- 1 root root  227 Apr 11 20:00 client-supervisor.key