In #tvix-dev, we want to display only CLs that relate to tvix and
related projects.
So use a pretty dumb allow-list for which CLs to display in that
channel.
Change-Id: I3ef50b64e3d7fbc27a6690be6a10f1b55c04cd6e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11658
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Tested-by: BuildkiteCI
