MB-46194 Add rbac/groups/<group> audit

Prior to this change auditing was not generated for

* settings/rbac/groups/<group-name>

Change-Id: Ife030ea6a5cd70067a2af751be6fa8641b6f0ab4
Reviewed-on: http://review.couchbase.org/c/ns_server/+/160531
Well-Formed: Restriction Checker
Well-Formed: Build Bot <[email protected]>
Tested-by: Steve Watanabe <[email protected]>
Reviewed-by: Meni Hillel <[email protected]>

Author: stevewatanabe

src/menelaus_web_rbac.erl

@@ -1660,7 +1660,7 @@ handle_get_group(GroupId, Req) ->
         true ->
             verify_security_roles_access(
               Req, ?SECURITY_READ, menelaus_users:get_group_roles(GroupId)),
-
+            ns_audit:rbac_info_retrieved(Req, groups),
             menelaus_util:reply_json(Req, get_group_json(GroupId))
     end.