Upgrade OAuth2 Proxy to chart version 6.19.0 and app version 7.5.1

Michi Kofler-Häusler - 14 Nov 2023

No problems deploying to Proxmox VE K3s Kubernetes cluster via Helm Chart and Flux V2 reconciliation in a GitOps approach.
Helm Chart 6.18.1
Helm Chart 6.18.2
Helm Chart 6.18.3
Helm Chart 6.19.0
Application v7.5.1