chore(3p/sources): Bump channels & overlays r/4276

* //users/grfn/home/yeren: remove discord override which broke eval due
  to a changed overriding scheme adopted in nixpkgs. nixpkgs has discord
  0.0.18 now, so updating from 0.0.16 is probably fine.

Change-Id: I540ff3621dcb548d33a929588fbe7fddc3078050
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5912
Tested-by: BuildkiteCI
Autosubmit: sterni <sternenseemann@systemli.org>
Reviewed-by: grfn <grfn@gws.fyi>
Reviewed-by: tazjin <tazjin@tvl.su>

0 files changed, 0 insertions, 0 deletions