chore(deps): update flake.lock

Flake lock file updates:

• Updated input 'nix-darwin':
    'github:nix-darwin/nix-darwin/973db96394513fd90270ea5a1211a82a4a0ba47f?narHash=sha256-6p2ljK42s0S8zS0UU59EsEqupz0GVCaBYRylpUadeBM%3D' (2025-11-14)
  → 'github:nix-darwin/nix-darwin/3bda9f6b14161becbd07b3c56411f1670e19b9b5?narHash=sha256-nJRd4LY2kT3OELfHqdgWjvToNZ4w%2BzKCMzS2R6z4sXE%3D' (2025-11-18)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/85a6c4a07faa12aaccd81b36ba9bfc2bec974fa1?narHash=sha256-3YJkOBrFpmcusnh7i8GXXEyh7qZG/8F5z5%2B717550Hk%3D' (2025-11-16)
  → 'github:nixos/nixpkgs/6f374686605df381de8541c072038472a5ea2e2d?narHash=sha256-AJHrsT7VoeQzErpBRlLJM1SODcaayp0joAoEA35yiwM%3D' (2025-11-18)
• Updated input 'nixpkgs-darwin-stable':
    'github:nixos/nixpkgs/c6a7614d86715b6d25cd12fd32549b3c59ed321e?narHash=sha256-TfHrfpkBXOS235bzZcav6YSBWg7XLdraKwmEkgbrNow%3D' (2025-11-17)
  → 'github:nixos/nixpkgs/abddaec7149b62550305c0d20cf9651f8413da77?narHash=sha256-1fLfhNP35paY/it%2BlWQMxsrDcCTpD8VTnnADoUxaxwg%3D' (2025-11-18)
• Updated input 'nixpkgs-linux-stable':
    'github:nixos/nixpkgs/3acb677ea67d4c6218f33de0db0955f116b7588c?narHash=sha256-A5LS0AJZ1yDPTa2fHxufZN%2B%2Bn8MCmtgrJDtxFxrH4S8%3D' (2025-11-13)
  → 'github:nixos/nixpkgs/4c8cdd5b1a630e8f72c9dd9bf582b1afb3127d2c?narHash=sha256-LBVOyaH6NFzQ3X/c6vfMZ9k4SV2ofhpxeL9YnhHNJQQ%3D' (2025-11-16)
• Updated input 'nixpkgs-linux-unstable':
    'github:nixos/nixpkgs/50a96edd8d0db6cc8db57dab6bb6d6ee1f3dc49a?narHash=sha256-Y7TDFPK4GlqrKrivOcsHG8xSGqQx3A6c%2Bi7novT85Uk%3D' (2025-11-16)
  → 'github:nixos/nixpkgs/89c2b2330e733d6cdb5eae7b899326930c2c0648?narHash=sha256-Stk9ZYRkGrnnpyJ4eqt9eQtdFWRRIvMxpNRf4sIegnw%3D' (2025-11-17)
• Updated input 'nixvim':
    'github:nix-community/nixvim/7a30e6cf259d8db84aefc626058c074bd995d482?narHash=sha256-FhgZD8pk3VE2SL0g4nCYKF0L6IO3uL110tfrBaZkdG0%3D' (2025-11-17)
  → 'github:nix-community/nixvim/7408b72662f2c6930448539638528b23c05ef17e?narHash=sha256-C8FfYP5D0bgoZrIqrGGMNozc8Way3qGx/U6tK/RBZQ8%3D' (2025-11-18)

Author: github-actions[bot]