flake.lock: Update (#872)

Flake lock file updates:

• Updated input 'nixos-infra':
    'github:NixOS/infra/23473895f67d9d33fa67fd10d5db30dc577fb3b7?narHash=sha256-A7ikX1heRsev%2Bt/bHnHLcWB96MQ5HataFZbYbITggXk%3D' (2024-12-23)
  → 'github:NixOS/infra/ffa2c5e25e55240fd4d1fc3c15ced7527e6d4484?narHash=sha256-LLvOia9XlltlfBKN/STkBYylebEuLS19LCQqADUjEoo%3D' (2024-12-31)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/634fd46801442d760e09493a794c4f15db2d0cbb?narHash=sha256-NYVcA06%2BblsLG6wpAbSPTCyLvxD/92Hy4vlY9WxFI1M%3D' (2024-12-27)
  → 'github:NixOS/nixpkgs/88195a94f390381c6afcdaa933c2f6ff93959cb4?narHash=sha256-0q9NGQySwDQc7RhAV2ukfnu7Gxa5/ybJ2ANT8DQrQrs%3D' (2024-12-29)

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