feat: sync issue fields (sub-issues, tracked-in fields) for organizations

[joshjohanning]

Overview

GitHub has an Issue Fields organization permission (separate from Issue Types). This covers fields like sub-issues and tracked-in relationships.

Feature Request

Investigate and add support for syncing issue field configuration at the org level if the API supports it.

Notes

• GitHub App permission: Issue fields (organization permission)
• Distinct from Issue types which is already implemented
• Needs investigation into what API endpoints are available for this

[joshjohanning]

🚀 This has been shipped in v1.12.0! (Release notes)