flake.lock: Update

Flake lock file updates:

• Updated input 'nightly':
    'github:nix-community/neovim-nightly-overlay/6af6599bcd47881db1474741feccfad7e6b9bc89?narHash=sha256-nJFzVqqgnG1l6myW9CasMOMlVxWw/GQIfk%2Bpj1gploo%3D' (2024-12-17)
  → 'github:nix-community/neovim-nightly-overlay/1bac49debd490fc69306e117c6da95a523bd7c35?narHash=sha256-Q8E0fL3BLA1qxNIZZEbb3IAGYucqyUYe/rrmzjGrEkc%3D' (2024-12-19)
• Updated input 'nightly/git-hooks':
    'github:cachix/git-hooks.nix/0bb4be58f21ff38fc3cdbd6c778eb67db97f0b99?narHash=sha256-Keu8z5VgT5gnCF4pmB%2Bg7XZFftHpfl4qOn7nqBcywdE%3D' (2024-12-16)
  → 'github:cachix/git-hooks.nix/0ddd26d0925f618c3a5d85a4fa5eb1e23a09491d?narHash=sha256-nzE5UbJ41aPEKf8R2ZFYtLkqPmF7EIUbNEdHMBLg0Ig%3D' (2024-12-17)
• Updated input 'nightly/neovim-src':
    'github:neovim/neovim/b03e790cddd19b57fa91f4fbfcc30c28f3c173bf?narHash=sha256-tps3/pwsjX0KuxhaGz5sYgaLDINY8VH6lMRPyX8rwkI%3D' (2024-12-17)
  → 'github:neovim/neovim/02bc40c19401ea9f7529cbc81bd18bd01c39bb3c?narHash=sha256-lFSBvz6gLvOE%2B7HXt6H9MrMBHlznMluUb1JbAJQwdA4%3D' (2024-12-18)
• Updated input 'nightly/nixpkgs':
    'github:NixOS/nixpkgs/71a6392e367b08525ee710a93af2e80083b5b3e2?narHash=sha256-0XovF7BYP50rTD2v4r55tR5MuBLet7q4xIz6Rgh3BBU%3D' (2024-12-13)
  → 'github:NixOS/nixpkgs/4989a246d7a390a859852baddb1013f825435cee?narHash=sha256-kMBQ5PRiFLagltK0sH%2B08aiNt3zGERC2297iB6vrvlU%3D' (2024-12-17)
• Updated input 'nightly/treefmt-nix':
    'github:numtide/treefmt-nix/0ce9d149d99bc383d1f2d85f31f6ebd146e46085?narHash=sha256-s4DalCDepD22jtKL5Nw6f4LP5UwoMcPzPZgHWjAfqbQ%3D' (2024-12-09)
  → 'github:numtide/treefmt-nix/76159fc74eeac0599c3618e3601ac2b980a29263?narHash=sha256-/QceWozrNg915Db9x/Ie5k67n9wKgGdTFng%2BZ1Qw0kE%3D' (2024-12-18)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/71a6392e367b08525ee710a93af2e80083b5b3e2?narHash=sha256-0XovF7BYP50rTD2v4r55tR5MuBLet7q4xIz6Rgh3BBU%3D' (2024-12-13)
  → 'github:nixos/nixpkgs/4989a246d7a390a859852baddb1013f825435cee?narHash=sha256-kMBQ5PRiFLagltK0sH%2B08aiNt3zGERC2297iB6vrvlU%3D' (2024-12-17)