Flake lock file updates: • Updated input 'nixpkgs': 'github:NixOS/nixpkgs/85f1ba3e51676fa8cc604a3d863d729026a6b8eb' (2023-11-04) → 'github:NixOS/nixpkgs/e4ad989506ec7d71f7302cc3067abd82730a4beb' (2023-11-19)