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/reactivedata/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, ocaml, findlib, ocamlbuild, react, opaline }:
+{ lib, stdenv, fetchurl, ocaml, findlib, ocamlbuild, react, opaline }:
 
 if !stdenv.lib.versionAtLeast ocaml.version "4.04"
 then throw "reactiveData is not available for OCaml ${ocaml.version}"
@@ -18,7 +18,7 @@ stdenv.mkDerivation {
 
   installPhase = "opaline -prefix $out -libdir $OCAMLFIND_DESTDIR";
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "An OCaml module for functional reactive programming (FRP) based on React";
     homepage = "https://github.com/ocsigen/reactiveData";
     license = licenses.lgpl21;