feat(ops/nixos): Give all nixoses a config.depot r/1905

Add the depot.nix module and a depot config option to all nixos system
derivations that're build through the `bin/rebuild-system` machinery.
I can't imagine a scenario where we wouldn't want this level of
integration.

Change-Id: Ieeb98db2eee23919256adb4654bc45d540e055ec
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2128
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>

0 files changed, 0 insertions, 0 deletions