Upgrade kube-prometheus-stack to chart version 51.2.0 and app version 0.68.0

Michi Kofler-Häusler - 01 Oct 2023

No problems deploying Prometheus Helm chart to Proxmox VE K3s Kubernetes cluster via Helm Chart and Flux V2 reconciliation in a GitOps approach.
0.68.0 / 2023-09-08
Helm Chart 51.1.0
Helm Chart 51.1.1
Helm Chart 51.2.0