flake.lock: Update

Flake lock file updates:

• Updated input 'catppuccin':
    'github:catppuccin/nix/a6b0e34d083c79f08efabb1fd6ccf12b882daae6?narHash=sha256-L9u68mNPPiuW7%2BOV5BKbXaj/AENTiiuEx8%2BQnMBjRlU%3D' (2025-06-27)
  → 'github:catppuccin/nix/842da43be0d00d7cf4c26faf279bc71a614c259b?narHash=sha256-rWJqnFNh%2BxAoXLPMOUWvb2jMUUgGs4PKI/p2lgUczBA%3D' (2025-08-28)
• Updated input 'catppuccin/nixpkgs':
    'github:NixOS/nixpkgs/2631b0b7abcea6e640ce31cd78ea58910d31e650?narHash=sha256-LWqduOgLHCFxiTNYi3Uj5Lgz0SR%2BXhw3kr/3Xd0GPTM%3D' (2025-04-12)
  → 'github:NixOS/nixpkgs/20075955deac2583bb12f07151c2df830ef346b4?narHash=sha256-HMwfAJBdrr8wXAkbGhtcby1zGFvs%2BStOp19xNsbqdOg%3D' (2025-08-19)
• Updated input 'darwin':
    'github:LnL7/nix-darwin/1dd19f19e4b53a1fd2e8e738a08dd5fe635ec7e5?narHash=sha256-w9EG5FOXrjXGfbqCcQg9x1lMnTwzNDW5BMXp8ddy15E%3D' (2025-06-22)
  → 'github:LnL7/nix-darwin/8df64f819698c1fee0c2969696f54a843b2231e8?narHash=sha256-XkiN4NM9Xdy59h69Pc%2BVg4PxkSm9EWl6u7k6D5FZ5cM%3D' (2025-08-22)
• Updated input 'home-manager':
    'github:nix-community/home-manager/76d0c31fce2aa0c71409de953e2f9113acd5b656?narHash=sha256-gvjG95TCnUVJkvQvLMlnC4NqiqFyBdJk3o8/RwuHeaU%3D' (2025-06-28)
  → 'github:nix-community/home-manager/99a69bdf8a3c6bf038c4121e9c4b6e99706a187a?narHash=sha256-duCce8zGsaMsrqqOmLOsuaV1PVIw/vXWnKuLKZClsGg%3D' (2025-08-30)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/80d50fc87924c2a0d346372d242c27973cf8cdbf?narHash=sha256-3u6rEbIX9CN/5A5/mc3u0wIO1geZ0EhjvPBXmRDHqWM%3D' (2025-06-27)
  → 'github:nixos/nixpkgs/a918bb3594dd243c2f8534b3be01b3cb4ed35fd1?narHash=sha256-ynQxPVN2FIPheUgTFhv01gYLbaiSOS7NgWJPm9LF9D0%3D' (2025-08-30)

Author: github-actions[bot]