treewide: with stdenv.lib; in meta -> with lib;

Part of: https://github.com/NixOS/nixpkgs/issues/108938

meta = with stdenv.lib;

is a widely used pattern. We want to slowly remove
the `stdenv.lib` indirection and encourage people
to use `lib` directly. Thus let’s start with the meta
field.

This used a rewriting script to mostly automatically
replace all occurances of this pattern, and add the
`lib` argument to the package header if it doesn’t
exist yet.

The script in its current form is available at
https://cs.tvl.fyi/depot@2f807d7f141068d2d60676a89213eaa5353ca6e0/-/blob/users/Profpatsch/nixpkgs-rewriter/default.nix

pkgs/tools/networking/spoofer/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, protobuf, openssl, libpcap, traceroute
+{ lib, stdenv, fetchurl, pkgconfig, protobuf, openssl, libpcap, traceroute
 , withGUI ? false, qt5 }:
 
 let inherit (stdenv.lib) optional;
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ openssl protobuf libpcap traceroute ]
                 ++ optional withGUI qt5.qtbase ;
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     homepage = "https://www.caida.org/projects/spoofer";
     description = "Assess and report on deployment of source address validation";
     longDescription = ''