stdenv.lib deprecation warning on installation

[scarf005]

Summary

stdenv.lib needs to be migrated to lib due to deprecation.

Steps to reproduce

follow https://github.com/obsidiansystems/obelisk#installing-obelisk

Outcome

 ~  nix-env -f https://github.com/obsidiansystems/obelisk/archive/master.tar.gz -iA command
trace: Warning: `stdenv.lib` is deprecated and will be removed in the next release. Please use `lib` instead. For more information see https://github.com/NixOS/nixpkgs/issues/108938

related: NixOS/nixpkgs#108938

System information

(output from nix-shell -p nix-info --run "nix-info -m")

• system: "x86_64-linux"
• host os: Linux 6.3.2-060302-generic, Ubuntu, 23.04 (Lunar Lobster), nobuild
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.16.0
• channels(root): "nixpkgs"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixpkgs