flake.lock: Update

Flake lock file updates:

• Updated input 'buildbot-nix':
    'github:nix-community/buildbot-nix/7a4d984674aa7eafc4247bf3fcfeeccf50cde4f3?narHash=sha256-h9PKb49OdsnuwN10hzGLK%2BuNPL45xmcmsltPN1I%2B7c4%3D' (2025-01-30)
  → 'github:nix-community/buildbot-nix/13b7bb36c12e42797218ce04d6767e83c70497d3?narHash=sha256-ZBK7MABYnd9fjjOYRA8plXRMdVoir6EuUImcM8LxSBQ%3D' (2025-02-02)
• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/b905f6fc23a9051a6e1b741e1438dbfc0634c6de?narHash=sha256-%2Bhu54pAoLDEZT9pjHlqL9DNzWz0NbUn8NEAHP7PQPzU%3D' (2025-01-06)
  → 'github:hercules-ci/flake-parts/32ea77a06711b758da0ad9bd6a844c5740a87abd?narHash=sha256-7H9XgNiGLKN1G1CgRh0vUL4AheZSYzPm%2BzmZ7vxbJdo%3D' (2025-02-01)
• Updated input 'nix-index-database':
    'github:nix-community/nix-index-database/79b7b8eae3243fc5aa9aad34ba6b9bbb2266f523?narHash=sha256-LIRtMvAwLGb8pBoamzgEF67oKlNPz4LuXiRPVZf%2BTpE%3D' (2025-01-26)
  → 'github:nix-community/nix-index-database/46a8f5fc9552b776bfc5c5c96ea3bede33f68f52?narHash=sha256-PZhUjtvQZOH3PO0EYdTpQvcqkgkq1NkP2A6w9SPHYsk%3D' (2025-02-02)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/e2807b247ea4704655f71a36403a68ee04b634db?narHash=sha256-bRvUuk8A0O5jm/3fRN9Y5eFqLmO2b6bCC0YtPMxmWCI%3D' (2025-01-31)
  → 'github:NixOS/nixpkgs/ff0654c494b7484c4854ddabecdb91b0b7f7c4d0?narHash=sha256-Zt6oFCas78fRSFKX4yFLCh5D2o2%2BN67ox0g4LenzA0c%3D' (2025-02-02)