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/misc/vscode-extensions/cpptools/default.nix

@@ -1,4 +1,4 @@
-{ stdenv, vscode-utils
+{ lib, stdenv, vscode-utils
 , fetchurl, unzip
 , mono, writeScript, runtimeShell
 , jq, clang-tools
@@ -92,7 +92,7 @@ vscode-utils.buildVscodeMarketplaceExtension rec {
     chmod a+x ./bin/cpptools{-srv,}
   '';
 
-    meta = with stdenv.lib; {
+    meta = with lib; {
       license = licenses.unfree;
       maintainers = [ maintainers.jraygauthier ];
       # A 32 bit linux would also be possible with some effort (specific download of binaries +