pkgs/top-level/release-attrpaths-superset.nix: Add attrpath to error context (#373669)

          lib.pipe value [

            (builtins.mapAttrs (

              name: value:

              builtins.addErrorContext

                "while evaluating package set attribute path '${lib.showAttrPath (path ++ [ name ])}'"

                (

                  if excluded-attrnames-at-any-depth.${name} or false then

                    [ ]

                  else

                    (justAttrNames (path ++ [ name ]) value)

                )

            ))

            builtins.attrValues

            builtins.concatLists