flake.lock: Update

Flake lock file updates:

• Updated input 'neovim-nightly':
    'github:neovim/neovim/ac353e87aecf02315d82a3ad22725d2bc8140f0c?dir=contrib' (2023-10-28)
  → 'github:neovim/neovim/324fad1e88ba38c87db446418a96fd3170b7f392?dir=contrib' (2023-11-05)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/808c0d8c53c7ae50f82aca8e7df263225cf235bf' (2023-10-26)
  → 'github:nixos/nixpkgs/a0b3b06b7a82c965ae0bb1d59f6e386fe755001d' (2023-11-05)
• Updated input 'pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/bd38df3d508dfcdff52cd243d297f218ed2257bf' (2023-10-25)
  → 'github:cachix/pre-commit-hooks.nix/dec10399e5b56aa95fcd530e0338be72ad6462a0' (2023-11-01)