Upgrade Traefik to chart version 20.1.1 and app version 2.9.4

Some major problems deploying to Proxmox VE K3s Kubernetes cluster via Helm Chart and Flux V2 reconciliation in a GitOps approach.
Helm Chart v19.0.4
Helm Chart v20.0.0
Helm Chart v20.1.0
Helm Chart v20.1.1