changelog: fix link

Author: jcarpent

CHANGELOG.md

@@ -10,7 +10,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Added a deprecation call policy shortcut ([#466](https://github.com/stack-of-tasks/eigenpy/pull/466))
 
 ### Fixed
-- Fix register_symbolic_link_to_registered_type() for multiple successive registrations ([#](https://github.com/stack-of-tasks/eigenpy/pull/471))
+- Fix register_symbolic_link_to_registered_type() for multiple successive registrations ([#471](https://github.com/stack-of-tasks/eigenpy/pull/471))
 
 ## [3.5.1] - 2024-04-25