FEAT(trivy): enable Trivy operator for security scanning

- Uncomment trivy/argocd.yaml in kustomization.yaml
- Enable automated sync in trivy argocd.yaml

trivy/argocd.yaml

@@ -24,7 +24,9 @@ spec:
     server: https://kubernetes.default.svc
     namespace: trivy-system
   syncPolicy:
-    # automated sync disabled - installation cancelled
+    automated:
+      prune: true
+      selfHeal: true
     syncOptions:
     - CreateNamespace=true
     - PrunePropagationPolicy=foreground