RBAC for action-alias help changelog entry.

Author: nzlosh

CHANGELOG.rst

@@ -13,6 +13,9 @@ Fixed
 * Bumped `paramiko` to `2.10.5` to fix an issue with SSH Certs - https://github.com/paramiko/paramiko/issues/2017
   Contributed by @jk464
 
+* Added RBAC support to action-alias help end point. #6022
+  Contributed by @nzlosh
+
 Added
 ~~~~~
 * Move `git clone` to `user_home/.st2packs` #5845