flake.lock: Update

Flake lock file updates:

• Updated input 'emacs-overlay':
    'github:nix-community/emacs-overlay/c19de550027db6d9d1ba85b63b4cb78fdf73ee00' (2024-01-12)
  → 'github:nix-community/emacs-overlay/9fa1fdb259360c2d7b45bb3f4003a83b5f9f809e' (2024-01-14)
• Updated input 'emacs-overlay/nixpkgs':
    'github:NixOS/nixpkgs/317484b1ead87b9c1b8ac5261a8d2dd748a0492d' (2024-01-08)
  → 'github:NixOS/nixpkgs/9b19f5e77dd906cb52dade0b7bd280339d2a1f3d' (2024-01-13)
• Updated input 'emacs-overlay/nixpkgs-stable':
    'github:NixOS/nixpkgs/3dc440faeee9e889fe2d1b4d25ad0f430d449356' (2024-01-10)
  → 'github:NixOS/nixpkgs/428544ae95eec077c7f823b422afae5f174dee4b' (2024-01-13)
• Updated input 'home-manager':
    'github:nix-community/home-manager/93e804e7f8a1eb88bde6117cd5046501e66aa4bd' (2024-01-11)
  → 'github:nix-community/home-manager/846200eb574faa2af808ed02e653c2b8ed51fd71' (2024-01-14)
• Updated input 'neovim-nightly-overlay':
    'github:nix-community/neovim-nightly-overlay/1f54e89757bd951470a9dcc8d83474e363f130c5' (2024-01-12)
  → 'github:nix-community/neovim-nightly-overlay/0b0c6a4cadc8eac472fe4c0512639331c930424e' (2024-01-15)
• Updated input 'neovim-nightly-overlay/neovim-flake':
    'github:neovim/neovim/1813661a6197c76ea6621284570aca1d56597099?dir=contrib' (2024-01-11)
  → 'github:neovim/neovim/965dbd0e019ab2e2d7db1af57f406d7cf57716d7?dir=contrib' (2024-01-14)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/317484b1ead87b9c1b8ac5261a8d2dd748a0492d' (2024-01-08)
  → 'github:NixOS/nixpkgs/9b19f5e77dd906cb52dade0b7bd280339d2a1f3d' (2024-01-13)