Add changelog entry

Author: DiamondJoseph

CHANGELOG.md

@@ -23,6 +23,7 @@ Write the date in place of the "Unreleased" in the case a new version is release
     TILED_SERVER_SECRET_KEYS is now TILED_SECRET_KEYS and these fields now require passing a json
     list e.g. ``TILED_SECRET_KEYS='["one", "two"]'``
 - More type hinting
+- Refactor authentication router construction
 
 ## 0.1.0-b20 (2025-03-07)