flake.lock: Update

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/567b938d64d4b4112ee253b9274472dc3a346eb6?narHash=sha256-%2Bebgonl3NbiKD2UD0x4BszCZQ6sTfL4xioaM49o5B3Y%3D' (2024-09-01)
  → 'github:hercules-ci/flake-parts/3d04084d54bedc3d6b8b736c70ef449225c361b1?narHash=sha256-K5ZLCyfO/Zj9mPFldf3iwS6oZStJcU4tSpiXTMYaaL0%3D' (2024-10-01)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/b833ff01a0d694b910daca6e2ff4a3f26dee478c?narHash=sha256-tLGCFEFTB5TaOKkpfw3iYT9dnk4awTP/q4w%2BROpMfuw%3D' (2024-09-01)
  → 'github:NixOS/nixpkgs/b69de56fac8c2b6f8fd27f2eca01dcda8e0a4221?narHash=sha256-f0SBJz1eZ2yOuKUr5CA9BHULGXVSn6miBuUWdTyhUhU%3D' (2024-10-10)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/3ffd842a5f50f435d3e603312eefa4790db46af5?narHash=sha256-F4djBvyNRAXGusJiNYInqR6zIMI3rvlp6WiKwsRISos%3D' (2024-08-28)
  → 'github:numtide/treefmt-nix/4446c7a6fc0775df028c5a3f6727945ba8400e64?narHash=sha256-xpRqITAoD8rHlXQafYZOLvUXCF6cnZkPfoq67ThN0Hc%3D' (2024-10-03)