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/python-modules/agate-sql/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchPypi, buildPythonPackage, agate, sqlalchemy, crate }:
+{ lib, stdenv, fetchPypi, buildPythonPackage, agate, sqlalchemy, crate }:
 
 buildPythonPackage rec {
     pname = "agate-sql";
@@ -11,7 +11,7 @@ buildPythonPackage rec {
 
     propagatedBuildInputs = [ agate sqlalchemy crate ];
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       description = "Adds SQL read/write support to agate.";
       homepage    = "https://github.com/wireservice/agate-sql";
       license     = with licenses; [ mit ];