Missing option to set tag as permament

The tag tf resource (V 0.10.0) is missing a 'permament' property.
https://registry.terraform.io/providers/Flagsmith/flagsmith/latest/docs/resources/tag

Currently, we need to create a tag, assign a feature with that tag, go to settings and set the tag as 'permament' manually, via the Dashboard, or call API explicitly.

Start with the Terraform Registry documentation for the Flagsmith tag resource, then trace the tag resource entry point in this provider. Compare the requested property with the existing Dashboard or API behavior; done means the resource can configure the tag as permanent without a manual follow-up.

Written by the indexing model from the issue text.