jitsi-beta: set externalTraficPolicy to null for the jvb service
As pointed by @kaiyou, upstream add a default setting that is incompatible with the ClusterIP type https://github.com/jitsi-contrib/jitsi-helm/issues/67
As pointed by @kaiyou, upstream add a default setting that is incompatible with the ClusterIP type https://github.com/jitsi-contrib/jitsi-helm/issues/67