chore: change codeowners
# standard @username or @org/team-name format. You can also refer to a user by an
# email address that has been added to their GitHub account, for example user@example.com
-.github/* @dragonflyoss/dragonfly2-maintainers
-
* @dragonflyoss/dragonfly2-reviewers
+.github @dragonflyoss/dragonfly2-maintainers
