style: format entire depot with nixpkgs-fmt

This CL can be used to compare the style of nixpkgs-fmt against other
formatters (nixpkgs, alejandra).

Change-Id: I87c6abff6bcb546b02ead15ad0405f81e01b6d9e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4397
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: wpcarro <wpcarro@gmail.com>
Reviewed-by: Profpatsch <mail@profpatsch.de>
Reviewed-by: kanepyork <rikingcoding@gmail.com>
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: cynthia <cynthia@tvl.fyi>
Reviewed-by: edef <edef@edef.eu>
Reviewed-by: eta <tvl@eta.st>
Reviewed-by: grfn <grfn@gws.fyi>

third_party/grpc/default.nix

@@ -5,7 +5,7 @@
   stdenv = pkgs.fullLlvm11Stdenv;
   abseil-cpp = depot.third_party.abseil_cpp;
   re2 = depot.third_party.re2;
-}).overrideAttrs(orig: rec {
+}).overrideAttrs (orig: rec {
   cmakeFlags = orig.cmakeFlags ++ [
     "-DCMAKE_CXX_STANDARD_REQUIRED=ON"
     "-DCMAKE_CXX_STANDARD=17"