Updates a category.
Each time the category is updated, revision increments by 1.
You must specify the current revision to prevent unintended overwrites.
You can't adjust a categories sortOrder with this method, call Move Category instead.
You can only call this method when authenticated as a Wix app or Wix user identity.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.