flake.lock: Update

Flake lock file updates:

• Updated input 'doomemacs':
    'github:doomemacs/doomemacs/424b7af45fa2c96bbee9b06f33c6cd0fc13412ac?narHash=sha256-Lpof9j5FzY1hIRfXQDFCQOrbZcIopGJNtOuFS54lDRI%3D' (2024-09-05)
  → 'github:doomemacs/doomemacs/fe54aa436c39f0e6f948791b8956b7b93fdf36ed?narHash=sha256-h6Pfnc2d4Z2OwsR1Yamd1kCIlq06yLc4IcnUiPQ3XYk%3D' (2024-09-05)
• Updated input 'emacs-overlay':
    'github:nix-community/emacs-overlay/52dfbf0d625cc1e2765fe2bd9ecc8602b8d36943?narHash=sha256-GhweB9Z7qCNZBKfdo%2BGvvrQ8VLZqQKB/Kj5hC%2BV6%2Bwk%3D' (2024-09-05)
  → 'github:nix-community/emacs-overlay/d2e8a913f490f0022b9fe9c54e419e3ab134687c?narHash=sha256-1IYJSx7H%2BB7WwqbZSHDuGtz2UCtlxSQtudRB26ndJ4E%3D' (2024-09-06)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/b833ff01a0d694b910daca6e2ff4a3f26dee478c?narHash=sha256-tLGCFEFTB5TaOKkpfw3iYT9dnk4awTP/q4w%2BROpMfuw%3D' (2024-09-01)
  → 'github:NixOS/nixpkgs/9bb1e7571aadf31ddb4af77fc64b2d59580f9a39?narHash=sha256-Yd0FK9SkWy%2BZPuNqUgmVPXokxDgMJoGuNpMEtkfcf84%3D' (2024-09-05)