docs: Update API changelog for v1.3.9 release (#774)

Updates the API changelog to reflect the v1.3.9 release date
(2025-11-17).

This moves the 'Unreleased' section to a dated section as part of the
v1.3.9 release process.
This commit is contained in:
adam jones 2025-11-17 13:59:24 +00:00 • committed by GitHub
commit 7b3f01ab22
No known key found for this signature in database
GPG key ID: B5690EEEBB952194

View file

@ -2,7 +2,7 @@
Changes to the REST API endpoints and responses.
## Unreleased
## 2025-11-17
### Added