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/emulators/ruffle/default.nix

@@ -4,7 +4,7 @@
 , pkg-config
 , python3
 , rustPlatform
-, stdenv
+, lib, stdenv
 , wayland
 , xorg
 }:
@@ -39,7 +39,7 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "05kwfcbzjyyfhiqklhhlv06pinzw9bry4j8l9lk3k04c1q30gzkw";
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "An Adobe Flash Player emulator written in the Rust programming language.";
     homepage = "https://ruffle.rs/";
     license = with licenses; [ mit asl20 ];