Fix envoy-gateway and netbird-operator chart repo URLs

Envoy Gateway moved to OCI registry (docker.io/envoyproxy).
NetBird operator charts moved to https://netbirdio.github.io/helms
with chart name kubernetes-operator.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

argocd-apps/infrastructure/netbird-operator.yaml

@@ -10,9 +10,9 @@ metadata:
 spec:
   project: infrastructure
   sources:
-    - repoURL: https://netbirdio.github.io/kubernetes-operator
-      chart: netbird-operator
-      targetRevision: "*"
+    - repoURL: https://netbirdio.github.io/helms
+      chart: kubernetes-operator
+      targetRevision: "0.2.2"
       helm:
         valueFiles:
           - $values/infrastructure/netbird-operator/values.yaml