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/2a55567fcf15b1b1c7ed712a2c6fadaec7412ea8?narHash=sha256-iKzJcpdXih14qYVcZ9QC9XuZYnPc6T8YImb6dX166kw%3D' (2024-06-01)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/7bb2ccd8cdc44c91edba16c48d2c8f331fb3d856?narHash=sha256-Drmja/f5MRHZCskS6mvzFqxEaZMeciScCTFxWVLqWEY%3D' (2024-04-25)
  → 'github:NixOS/nixpkgs/57d6973abba7ea108bac64ae7629e7431e0199b6?narHash=sha256-9YrUjdztqi4Gz8n3mBuqvCkMo4ojrA6nASwyIKWMpus%3D' (2024-06-12)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/c6aaf729f34a36c445618580a9f95a48f5e4e03f?narHash=sha256-Qv4RBm4LKuO4fNOfx9wl40W2rBbv5u5m%2BwhxRYUMiaA%3D' (2024-04-25)
  → 'github:numtide/treefmt-nix/e75ba0a6bb562d2ce275db28f6a36a2e4fd81391?narHash=sha256-35hUMmFesmchb%2Bu7heKHLG5B6c8fBOcSYo0jj0CHLes%3D' (2024-06-13)