Upgrade Portainer to chart version 1.0.43 and app version 2.18.3

No problems deploying to Proxmox VE K3s Kubernetes cluster via Helm Chart and Flux V2 reconciliation in a GitOps approach.
Also the corresponding agents were automatically rolled out via Watchtower infrastructure on the Docker-only nodes including arm node.
Release 2.18.3
Helm Chart 1.0.43