Ability to lock attachments section

[Gareth Cantrell]

We'd like to request an enhancement to the the Access Control automations to be able to lock, at minimum, the Attachments section of a request.

Currently, we can lock all the actions and the request details, but not the attachments (or any other part of the request).

Our specific use-case is that when a request is closed, we need to lock down EVERYTHING as these specific requests are auditable as part of our financial year end audits, including the contents of the attachments.