Upgrade kube-prometheus-stack to chart version 56.13.1 and app version 0.71.2

No problems deploying Prometheus Helm chart to Proxmox VE K3s Kubernetes cluster via Helm Chart and Flux V2 reconciliation in a GitOps approach.

Helm Chart 56.9.0
Helm Chart 56.10.0
Helm Chart 56.11.0
Helm Chart 56.12.0
Helm Chart 56.13.0
Helm Chart 56.13.1