ocamlPackages: stdenv.lib → lib

This change was produced by searching for remaining occurrences of
stdenv.lib and replacing them manually.

Reference #108938.

pkgs/development/ocaml-modules/ppx_tools/default.nix

@@ -46,7 +46,7 @@ let src = fetchFromGitHub {
       maintainers = with maintainers; [ vbgl ];
     };
 in
-if stdenv.lib.versionAtLeast param.version "6.0"
+if lib.versionAtLeast param.version "6.0"
 then
   buildDunePackage {
     inherit pname src meta;