chore: run nix flake update

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/9126214d0a59633752a136528f5f3b9aa8565b7d?narHash=sha256-sB4SWl2lX95bExY2gMFG5HIzvva5AVMJd4Igm%2BGpZNw%3D' (2024-04-01)
  → 'github:hercules-ci/flake-parts/bcef6817a8b2aa20a5a6dbb19b43e63c5bf8619a?narHash=sha256-HO4zgY0ekfwO5bX0QH/3kJ/h4KvUDFZg8YpkNwIbg1U%3D' (2024-09-12)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/7bb2ccd8cdc44c91edba16c48d2c8f331fb3d856?narHash=sha256-Drmja/f5MRHZCskS6mvzFqxEaZMeciScCTFxWVLqWEY%3D' (2024-04-25)
  → 'github:NixOS/nixpkgs/30439d93eb8b19861ccbe3e581abf97bdc91b093?narHash=sha256-o8VBeCWHBxGd4kVMceIayf5GApqTavJbTa44Xcg5Rrk%3D' (2024-09-23)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/c6aaf729f34a36c445618580a9f95a48f5e4e03f?narHash=sha256-Qv4RBm4LKuO4fNOfx9wl40W2rBbv5u5m%2BwhxRYUMiaA%3D' (2024-04-25)
  → 'github:numtide/treefmt-nix/879b29ae9a0378904fbbefe0dadaed43c8905754?narHash=sha256-uGRlRT47ecicF9iLD1G3g43jn2e%2Bb5KaMptb59LHnvM%3D' (2024-09-27)