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/development/ocaml-modules/biocaml/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, buildDunePackage, fetchFromGitHub, fetchpatch
+{ lib, stdenv, buildDunePackage, fetchFromGitHub, fetchpatch
 , ounit, async, base64, camlzip, cfstream
 , core, ppx_jane, ppx_sexp_conv, rresult, uri, xmlm }:
 
@@ -21,7 +21,7 @@ buildDunePackage rec {
   checkInputs = [ ounit ];
   propagatedBuildInputs = [ async base64 camlzip cfstream core rresult uri xmlm ];
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Bioinformatics library for Ocaml";
     homepage = "http://${pname}.org";
     maintainers = [ maintainers.bcdarwin ];