flake.lock: Update (#467)

Flake lock file updates:

• Updated input 'neovim-nightly':
    'github:nix-community/neovim-nightly-overlay/83062e5db634ba7a6a937f72e59b2c2224475a65?narHash=sha256-XMC2JCQzykiV9CtFh6YmPeoiRk065oExTB55Q0sBvCk%3D' (2025-01-16)
  → 'github:nix-community/neovim-nightly-overlay/7d67e712dff97cca8e6eff015af8fbddab332062?narHash=sha256-NWsz/64rMc4B7374QhoMFb3O/tLr3e1FBouIgxHioaQ%3D' (2025-01-17)
• Updated input 'neovim-nightly/git-hooks':
    'github:cachix/git-hooks.nix/a5a961387e75ae44cc20f0a57ae463da5e959656?narHash=sha256-3FZAG%2BpGt3OElQjesCAWeMkQ7C/nB1oTHLRQ8ceP110%3D' (2025-01-03)
  → 'github:cachix/git-hooks.nix/94ee657f6032d913fe0ef49adaa743804635b0bb?narHash=sha256-I/OuxGwXwRi5gnFPsyCvVR%2BIfFstA%2BQXEpHu1hvsgD8%3D' (2025-01-16)
• Updated input 'neovim-nightly/neovim-src':
    'github:neovim/neovim/524be56042335db589b9fe62dfdae39be3f69a15?narHash=sha256-mKv5E7Usbs7SJXpkx7pcCj4UhU/NHbaCNcr3UkBdHlg%3D' (2025-01-15)
  → 'github:neovim/neovim/fb564ddff0b4ec9dad5afa7548777af1c3044273?narHash=sha256-MVW/WeEfQYB9rnzxOiFA9Go5vhNSA7RLFdRFbpL/h9c%3D' (2025-01-16)
• Updated input 'neovim-nightly/nixpkgs':
    'github:NixOS/nixpkgs/0bd024d34eb07cef235f94258423f40a41182088?narHash=sha256-Jzq/EKtSxOCA9hFuovQGlzOuRA8p9cB4mMYWUeCW4FA%3D' (2025-01-15)
  → 'github:NixOS/nixpkgs/ae2fb9f1fb5fcf17fb59f25c2a881c170c501d6f?narHash=sha256-BYsp8PA1j691FupfrLVOQzm4CaYaKtkh4U%2BKuGMnBWw%3D' (2025-01-15)
• Updated input 'neovim-nightly/treefmt-nix':
    'github:numtide/treefmt-nix/13c913f5deb3a5c08bb810efd89dc8cb24dd968b?narHash=sha256-p2r8xhQZ3TYIEKBoiEhllKWQqWNJNoT9v64Vmg4q8Zw%3D' (2025-01-06)
  → 'github:numtide/treefmt-nix/97871d416166803134ba64597a1006f3f670fbde?narHash=sha256-saLiCRQ5RtdTnznT/fja7GxcYRAzeY3k8S%2BIF/2s/2A%3D' (2025-01-16)

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