Merge pull request #5666 from gianarb/chore/gianarb-release-manager

Remove myself from release-manager slack group

Author: k8s-ci-robot

communication/slack-config/sig-release/usergroups.yaml

@@ -17,7 +17,6 @@ usergroups:
       - ameukam # Release Manager Associate
       - cpanato # Release Manager
       - feiskyer # Release Manager
-      - gianarb # Release Manager Associate
       - hasheddan # subproject owner / Release Manager
       - idealhack # Release Manager
       - jimangel # Release Manager Associate