nix: update flake.lock

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/b253292d9c0a5ead9bc98c4e9a26c6312e27d69f?narHash=sha256-a0NYyp%2Bh9hlb7ddVz4LUn1vT/PLwqfrWYcHMvFB1xYg%3D' (2024-02-01)
  → 'github:hercules-ci/flake-parts/9227223f6d922fee3c7b190b2cc238a99527bbb7?narHash=sha256-pQMhCCHyQGRzdfAkdJ4cIWiw%2BJNuWsTX7f0ZYSyz0VY%3D' (2024-07-03)
• Updated input 'flake-parts/nixpkgs-lib':
    'github:NixOS/nixpkgs/97b17f32362e475016f942bbdfda4a4a72a8a652?dir=lib&narHash=sha256-UcsnCG6wx%2B%2B23yeER4Hg18CXWbgNpqNXcHIo5/1Y%2Bhc%3D' (2024-01-29)
  → 'https://github.com/NixOS/nixpkgs/archive/5daf0514482af3f97abaefc78a6606365c9108e2.tar.gz?narHash=sha256-Fm2rDDs86sHy0/1jxTOKB1118Q0O3Uc7EC0iXvXKpbI%3D' (2024-07-01)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/a4d4fe8c5002202493e87ec8dbc91335ff55552c?narHash=sha256-ZL2TrjVsiFNKOYwYQozpbvQSwvtV/3Me7Zwhmdsfyu4%3D' (2024-02-15)
  → 'github:NixOS/nixpkgs/68c9ed8bbed9dfce253cc91560bf9043297ef2fe?narHash=sha256-Tybxt65eyOARf285hMHIJ2uul8SULjFZbT9ZaEeUnP8%3D' (2024-07-21)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/ac599dab59a66304eb511af07b3883114f061b9d?narHash=sha256-qQF0fEkHlnxHcrKIMRzOETnRBksUK048MXkX0SOmxvA%3D' (2024-02-07)
  → 'github:numtide/treefmt-nix/8db8970be1fb8be9c845af7ebec53b699fe7e009?narHash=sha256-6Pqa0bi5nV74IZcENKYRToRNM5obo1EQ%2B3ihtunJ014%3D' (2024-07-23)