flake.lock: Update

Flake lock file updates:

• Updated input 'emacs-overlay':
    'github:nix-community/emacs-overlay/fc0346276e0e2a5abd5bbb9535d96f4ba4d4482c' (2024-01-26)
  → 'github:nix-community/emacs-overlay/87bfbcd248f3f17040db47b2cc8542033b12d051' (2024-01-28)
• Updated input 'emacs-overlay/nixpkgs':
    'github:NixOS/nixpkgs/612f97239e2cc474c13c9dafa0df378058c5ad8d' (2024-01-21)
  → 'github:NixOS/nixpkgs/ae5c332cbb5827f6b1f02572496b141021de335f' (2024-01-25)
• Updated input 'home-manager':
    'github:nix-community/home-manager/c7ce343d9bf1a329056a4dd5b32ea8cc43b55e15' (2024-01-25)
  → 'github:nix-community/home-manager/4d54c29bce71f8c261513e0662cc573d30f3e33e' (2024-01-28)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/612f97239e2cc474c13c9dafa0df378058c5ad8d' (2024-01-21)
  → 'github:NixOS/nixpkgs/ae5c332cbb5827f6b1f02572496b141021de335f' (2024-01-25)