chore(fun/clbot): switch from buildGo to buildGoModule

Fixes: https://git.snix.dev/snix/snix/issues/85
Change-Id: I2b2be44fdbbfaba19335c56ad37a6eb5cf206c5b
Reviewed-on: https://cl.snix.dev/c/snix/+/30185
Reviewed-by: Florian Klink <flokli@flokli.de>
Tested-by: besadii
Reviewed-by: Ryan Lahfa <masterancpp@gmail.com>

fun/clbot/gerrit/default.nix

@@ -1,18 +0,0 @@
-{ depot, ... }:
-
-let
-  inherit (depot.fun) clbot;
-  inherit (depot.third_party) gopkgs;
-in
-depot.nix.buildGo.package {
-  name = "code.tvl.fyi/fun/clbot/gerrit";
-  srcs = [
-    ./watcher.go
-  ];
-  deps = [
-    clbot.gerrit.gerritevents
-    clbot.backoffutil
-    gopkgs."github.com".golang.glog.gopkg
-    gopkgs."golang.org".x.crypto.ssh.gopkg
-  ];
-}

fun/clbot/gerrit/gerritevents/default.nix

@@ -1,10 +0,0 @@
-{ depot, ... }:
-
-depot.nix.buildGo.package {
-  name = "code.tvl.fyi/fun/clbot/gerrit/gerritevents";
-  srcs = [
-    ./time.go
-    ./types.go
-    ./events.go
-  ];
-}