Update cos (add link to another fluentbit plugin for Wendelin).

4 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS-Master.UnitTest-Master

03:05:16

failed SlapOS-Master.UnitTest-Master

02:52:01

failed SlapOS-Master.UnitTest-Master

03:00:20

failed SlapOS-Master.UnitTest-Master

00:18:38