Renames a label.
This method may require higher-level permissions than the caller has, based on their identity and roles and permissions. In these cases, you can ensure the method is called with the required level of authorization by using one of the following:
Label key.
key is generated when the label is created.
It can't be modified, even if displayName is updated.
Label to rename.
Language options.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.