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/chrony/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, libcap, readline, texinfo, nss, nspr
+{ lib, stdenv, fetchurl, pkgconfig, libcap, readline, texinfo, nss, nspr
 , libseccomp, pps-tools, gnutls }:
 
 assert stdenv.isLinux -> libcap != null;
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   configureFlags = [ "--chronyvardir=$(out)/var/lib/chrony" ]
     ++ stdenv.lib.optional stdenv.isLinux "--enable-scfilter";
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Sets your computer's clock from time servers on the Net";
     homepage = "https://chrony.tuxfamily.org/";
     repositories.git = "git://git.tuxfamily.org/gitroot/chrony/chrony.git";