Update changelog

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## [Unreleased](https://github.com/pixelfed/pixelfed/compare/v0.12.3...dev)
 - Update AP helpers, reject statuses with invalid dates ([960f3849](https://github.com/pixelfed/pixelfed/commit/960f3849))
+- Update DirectMessage API, fix broken threading ([044d410c](https://github.com/pixelfed/pixelfed/commit/044d410c))
 -  ([](https://github.com/pixelfed/pixelfed/commit/))
 
 ## [v0.12.4 (2024-11-08)](https://github.com/pixelfed/pixelfed/compare/v0.12.4...dev)