chore(nix): Update dependencies.

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/af66ad14b28a127c5c0f3bbb298218fc63528a18?narHash=sha256-pHYj8gUBapuUzKV/kN/tR3Zvqc7o6gdFB9XKXIp1SQ8%3D' (2025-08-06)
  → 'github:hercules-ci/flake-parts/4524271976b625a4a605beefd893f270620fd751?narHash=sha256-%2BuWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw%3D' (2025-09-01)
• Updated input 'flake-parts/nixpkgs-lib':
    'github:nix-community/nixpkgs.lib/0f36c44e01a6129be94e3ade315a5883f0228a6e?narHash=sha256-zvaMGVn14/Zz8hnp4VWT9xVnhc8vuL3TStRqwk22biA%3D' (2025-07-27)
  → 'github:nix-community/nixpkgs.lib/a73b9c743612e4244d865a2fdee11865283c04e6?narHash=sha256-x2rJ%2BOvzq0sCMpgfgGaaqgBSwY%2BLST%2BWbZ6TytnT9Rk%3D' (2025-08-10)
• Updated input 'hacknix':
    'github:hackworthltd/hacknix/d8248aedb56dcc85b2cbe1f9d45a44729b1c7bfb?narHash=sha256-XCKwJgFrfNygtXstRu0XsGQTw7A0qG/ypwHF2I/o3bE%3D' (2025-09-01)
  → 'github:hackworthltd/hacknix/5710b33c916015f9403d83a5c82e7ac62d61f54f?narHash=sha256-6Dl/jN7nE6Fel4/ZtuhtfbZ7hiDLpDsHTr4rErm3FxE%3D' (2025-09-06)
• Updated input 'hacknix/flake-parts':
    'github:hercules-ci/flake-parts/af66ad14b28a127c5c0f3bbb298218fc63528a18?narHash=sha256-pHYj8gUBapuUzKV/kN/tR3Zvqc7o6gdFB9XKXIp1SQ8%3D' (2025-08-06)
  → 'github:hercules-ci/flake-parts/4524271976b625a4a605beefd893f270620fd751?narHash=sha256-%2BuWLQZccFHwqpGqr2Yt5VsW/PbeJVTn9Dk6SHWhNRPw%3D' (2025-09-01)
• Updated input 'hacknix/flake-parts/nixpkgs-lib':
    'github:nix-community/nixpkgs.lib/0f36c44e01a6129be94e3ade315a5883f0228a6e?narHash=sha256-zvaMGVn14/Zz8hnp4VWT9xVnhc8vuL3TStRqwk22biA%3D' (2025-07-27)
  → 'github:nix-community/nixpkgs.lib/a73b9c743612e4244d865a2fdee11865283c04e6?narHash=sha256-x2rJ%2BOvzq0sCMpgfgGaaqgBSwY%2BLST%2BWbZ6TytnT9Rk%3D' (2025-08-10)
• Updated input 'hacknix/nix-darwin':
    'github:LnL7/nix-darwin/8df64f819698c1fee0c2969696f54a843b2231e8?narHash=sha256-XkiN4NM9Xdy59h69Pc%2BVg4PxkSm9EWl6u7k6D5FZ5cM%3D' (2025-08-22)
  → 'github:LnL7/nix-darwin/eaacfa1101b84225491d2ceae9549366d74dc214?narHash=sha256-1qBXNK/QxEjCqIoA2DxWn5gqM8rVxt%2BOxKodXu1GLTY%3D' (2025-09-04)
• Updated input 'hacknix/nixpkgs':
    'github:NixOS/nixpkgs/37ff64b7108517f8b6ba5705ee5085eac636a249?narHash=sha256-mBecwgUTWRgClJYqcF%2By4O1bY8PQHqeDpB%2BzsAn%2B/zA%3D' (2025-08-31)
  → 'github:NixOS/nixpkgs/c6a788f552b7b7af703b1a29802a7233c0067908?narHash=sha256-6n/n1GZQ/vi%2BLhFXMSyoseKdNfc2QQaSBXJdgamrbkE%3D' (2025-09-03)
• Updated input 'pre-commit-hooks-nix':
    'github:cachix/git-hooks.nix/e891a93b193fcaf2fc8012d890dc7f0befe86ec2?narHash=sha256-RF7j6C1TmSTK9tYWO6CdEMtg6XZaUKcvZwOCD2SICZs%3D' (2025-08-23)
  → 'github:cachix/git-hooks.nix/ab82ab08d6bf74085bd328de2a8722c12d97bd9d?narHash=sha256-E9spYi9lxm2f1zWQLQ7xQt8Xs2nWgr1T4QM7ZjLFphM%3D' (2025-09-07)

Author: github-actions[bot]