fix examples (Azure#17698)

Author: solankisamir

specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2021-08-01/examples/ApiManagementGetPrivateLinkGroupResource.json

@@ -9,16 +9,16 @@
   "responses": {
     "200": {
       "body": {
-        "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ApiManagement/service/apimService1/privateLinkResources/privateLinkSubResourceName",
+        "id": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.ApiManagement/service/apimService1/privateLinkResources/Gateway",
         "name": "Gateway",
         "type": "Microsoft.ApiManagement/service/privateLinkResources",
         "properties": {
           "groupId": "Gateway",
           "requiredMembers": [
-            "Gateway_west_us"
+            "Gateway"
           ],
           "requiredZoneNames": [
-            "privateLink.azure.api.net"
+            "privateLink.azure-api.net"
           ]
         }
       }

specification/apimanagement/resource-manager/Microsoft.ApiManagement/stable/2021-08-01/examples/ApiManagementListPrivateLinkGroupResources.json

@@ -16,10 +16,10 @@
             "properties": {
               "groupId": "Gateway",
               "requiredMembers": [
-                "Gateway_west_us"
+                "Gateway"
               ],
               "requiredZoneNames": [
-                "privateLink.azure.api.net"
+                "privateLink.azure-api.net"
               ]
             }
           }