flake.lock: Update (#494)

Flake lock file updates:

• Updated input 'disko':
    'github:nix-community/disko/9165064' (2025-12-19)
  → 'github:nix-community/disko/558e846' (2026-01-18)
• Updated input 'home-manager':
    'github:nix-community/home-manager/c47b2cc' (2026-01-16)
  → 'github:nix-community/home-manager/83bcb17' (2026-01-18)
• Updated input 'homebrew-cask':
    'github:homebrew/homebrew-cask/466f938' (2026-01-17)
  → 'github:homebrew/homebrew-cask/909c7dc' (2026-01-18)
• Updated input 'homebrew-core':
    'github:homebrew/homebrew-core/f98080f' (2026-01-17)
  → 'github:homebrew/homebrew-core/ad55181' (2026-01-18)
• Updated input 'jovian':
    'github:Jovian-Experiments/Jovian-NixOS/544a139' (2026-01-14)
  → 'github:Jovian-Experiments/Jovian-NixOS/6e911ae' (2026-01-17)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/a6b8b0f' (2026-01-16)
  → 'github:nixos/nixpkgs/a48c9db' (2026-01-18)
• Updated input 'sops-nix':
    'github:Mic92/sops-nix/e085e30' (2026-01-15)
  → 'github:Mic92/sops-nix/5e8fae8' (2026-01-18)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: devusb