chore: update changelog

Author: itsoyou

CHANGES.md

@@ -7,7 +7,8 @@ No significant changes since 1.146.0rc1.
 - [MSC2697](https://github.com/matrix-org/matrix-spec-proposals/pull/2697) (Dehydrated devices) has been removed, as the MSC is closed. Developers should migrate to [MSC3814](https://github.com/matrix-org/matrix-spec-proposals/pull/3814). ([\#19346](https://github.com/element-hq/synapse/issues/19346))
 - Support for Ubuntu 25.04 (Plucky Puffin) has been dropped. Synapse no longer builds debian packages for Ubuntu 25.04.
 
-
+### Famedly additions for v1.146.0_1
+- feat: trigger CI actions (that are triggered on PRs) in merge queue (FrenchGithubUser)
 
 # Synapse 1.146.0rc1 (2026-01-20)