egress gateway is part of IstioComponents definition (#25494)

Author: deveshdama

specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-06-02-preview/managedClusters.json

@@ -7980,17 +7980,17 @@
             "$ref": "#/definitions/IstioIngressGateway"
           },
           "x-ms-identifiers": []
+        },
+        "egressGateways": {
+          "type": "array",
+          "description": "Istio egress gateways.",
+          "items": {
+            "$ref": "#/definitions/IstioEgressGateway"
+          },
+          "x-ms-identifiers": []
         }
       }
     },
-    "egressGateways": {
-      "type": "array",
-      "description": "Istio egress gateways.",
-      "items": {
-        "$ref": "#/definitions/IstioEgressGateway"
-      },
-      "x-ms-identifiers": []
-    },
     "IstioIngressGateway": {
       "type": "object",
       "description": "Istio ingress gateway configuration. For now, we support up to one external ingress gateway named `aks-istio-ingressgateway-external` and one internal ingress gateway named `aks-istio-ingressgateway-internal`.",

specification/containerservice/resource-manager/Microsoft.ContainerService/aks/preview/2023-07-02-preview/managedClusters.json

@@ -8246,17 +8246,17 @@
             "$ref": "#/definitions/IstioIngressGateway"
           },
           "x-ms-identifiers": []
+        },
+        "egressGateways": {
+          "type": "array",
+          "description": "Istio egress gateways.",
+          "items": {
+            "$ref": "#/definitions/IstioEgressGateway"
+          },
+          "x-ms-identifiers": []
         }
       }
     },
-    "egressGateways": {
-      "type": "array",
-      "description": "Istio egress gateways.",
-      "items": {
-        "$ref": "#/definitions/IstioEgressGateway"
-      },
-      "x-ms-identifiers": []
-    },
     "IstioIngressGateway": {
       "type": "object",
       "description": "Istio ingress gateway configuration. For now, we support up to one external ingress gateway named `aks-istio-ingressgateway-external` and one internal ingress gateway named `aks-istio-ingressgateway-internal`.",