Advanced ArgoCD Configuration (Resilience, Backups, etc.)

[nikhiljha]

• https://argoproj.github.io/argo-cd/operator-manual/security/
• https://argoproj.github.io/argo-cd/operator-manual/disaster_recovery/
• https://argoproj.github.io/argo-cd/operator-manual/notifications/
• Webhook Secret (depends on secret management)