[guestconfiguration] Update generated swagger for latest TypeSpec (Azure#35957)

Author: mikeharder

specification/guestconfiguration/resource-manager/Microsoft.GuestConfiguration/assignments/stable/2024-04-05/guestconfiguration.json

@@ -389,8 +389,7 @@
           }
         },
         "x-ms-pageable": {
-          "nextLinkName": "nextLink",
-          "itemName": "value"
+          "nextLinkName": "nextLink"
         }
       }
     },