message: Update managedserviceidentity type enum
  Enum is currently missing the ua + sa combination + "none" type. We do support those values in our API and as such need the swagger to reflect that.
diff: "description": "Type of managed service identity.",
  "enum": [
  "SystemAssigned",
  - "UserAssigned"
  + "UserAssigned",
  + "SystemAssigned, UserAssigned",
  + "None"
  ],
  "type": "string",
  "x-ms-enum": {
  