[Release-1.32] - Upgrade Traefik to v2.11.18

[brandond]

Backport fix for Upgrade Traefik to v2.11.18

• Upgrade Traefik to v2.11.18 #11501

[fmoral2]

Validated on Version:

-$  k3s v1.32.0+k3s-9548f9b6  (9548f9b6)

Environment Details

Infrastructure
Cloud EC2 instance

Node(s) CPU architecture, OS, and Version:
NAME="Oracle Linux Server"
VERSION="8.9"
ID="ol"
ID_LIKE="fedora"

Cluster Configuration:
1 node servers

Steps to validate the fix

1. Install k3s
2. Verify traefik bump
3. Validate nodes and pods

Validation Results:

  
Command:
  kubectl get node -o yaml  --kubeconfig=/tmp/franmorallsadsadsadasdas_kubeconfig  | grep traefik  -A1
 ---------------------
  Assertion:
  2.11.18
 ----------------------
 Matched with result:
  - docker.io/rancher/mirrored-library-traefik@sha256:25df7bff0b414867f16a74c571c0dc84920404e45cc7780976cec77809230e09
      - docker.io/rancher/mirrored-library-traefik:2.11.18
        sizeBytes: 49449055
 

 Cluster nodes:  
 ip .us-east-2.compute.internal   Ready   control-plane,etcd,master   96s   v1.32.0+k3s-9548f9b6     Ubuntu 24.04 LTS   6.8.0-1012-aws   containerd://1.7.23-k3s2


 Cluster pods:                              
  kube-system   coredns-ff8999cc5-6qc5l                   1/1   Running     0     90s  0.4   ip-1.us-east-2.compute.internal   <none>   <none>
  kube-system   helm-install-traefik-crd-764tw            0/1   Completed   0     90s  0.6   ip-1.us-east-2.compute.internal   <none>   <none>
  kube-system   helm-install-traefik-vw5mm                0/1   Completed   1     90s  0.3   ip-1.us-east-2.compute.internal   <none>   <none>
  kube-system   local-path-provisioner-698b58967b-8nq8g   1/1   Running     0     90s  0.5   ip-1.us-east-2.compute.internal   <none>   <none>
  kube-system   metrics-server-8584b5786c-6qjnv           1/1   Running     0     90s  0.2   ip-1.us-east-2.compute.internal   <none>   <none>
  kube-system   svclb-traefik-126e8680-m9qzg              2/2   Running     0     69s  0.7   ip-1.us-east-2.compute.internal   <none>   <none>
  kube-system   traefik-5c57d75bc9-q5jwv                  1/1   Running     0     70s  0.8   ip-1.us-east-2.compute.internal   <none>   <none>