flake.lock: Update (ggml-org#10063)

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/4c2fcb090b1f3e5b47eaa7bd33913b574a11e0a0?narHash=sha256-/uilDXvCIEs3C9l73JTACm4quuHUsIHcns1c%2BcHUJwA%3D' (2024-10-18)
  → 'github:NixOS/nixpkgs/2768c7d042a37de65bb1b5b3268fc987e534c49d?narHash=sha256-AlcmCXJZPIlO5dmFzV3V2XF6x/OpNWUV8Y/FMPGd8Z4%3D' (2024-10-23)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: ggerganov