[bot] nixos/*: remove unused arguments in lambdas

nixos/modules/security/hidepid.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, lib, ... }:
+{ config, lib, ... }:
 with lib;
 
 {

nixos/modules/security/oath.nix

@@ -1,6 +1,6 @@
 # This module provides configuration for the OATH PAM modules.
 
-{ config, lib, pkgs, ... }:
+{ lib, ... }:
 
 with lib;