flake.lock: Update (#83)

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/6132b0f6e344ce2fe34fc051b72fb46e34f668e0?narHash=sha256-7R2ZvOnvd9h8fDd65p0JnB7wXfUvreox3xFdYWd1BnY%3D' (2024-05-30)
  → 'github:nixos/nixpkgs/d226935fd75012939397c83f6c385e4d6d832288?narHash=sha256-HV97wqUQv9wvptiHCb3Y0/YH0lJ60uZ8FYfEOIzYEqI%3D' (2024-06-07)
• Updated input 'pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/0e8fcc54b842ad8428c9e705cb5994eaf05c26a0?narHash=sha256-xrsYFST8ij4QWaV6HEokCUNIZLjjLP1bYC60K8XiBVA%3D' (2024-05-20)
  → 'github:cachix/pre-commit-hooks.nix/cc4d466cb1254af050ff7bdf47f6d404a7c646d1?narHash=sha256-7XfBuLULizXjXfBYy/VV%2BSpYMHreNRHk9nKMsm1bgb4%3D' (2024-06-06)

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