REST API does not include "Require associated issue in Jira" field, despite it being available in the UI

Description

The "Require an associated Jira issue" checkbox is available in our project settings, but the field is missing in the REST API for /projects/{projectId}. Is this intentional? We have a Premium-tier account, so I'm surprised this feature is available at all given that it's listed in the docs as an Ultimate feature.

I'm grateful it's available to us, but I've been going through each project one-by-one in the UI to toggle this setting on, and it's very time consuming. I'd rather use a script to loop over the hundreds of projects we have to modify this setting.

See documentation regarding this feature.