chore(example): Update flake.lock

Flake lock file updates:

• Updated input 'haskell-flake':
    'github:srid/haskell-flake/cfb7db6b7b66cb7d1499dd53b8aeaa7c866f565f?narHash=sha256-ySll9pAYK78v8GY5wrCFLg2iMI6Ms/4tNfrvlMaUQ1M%3D' (2024-06-02)
  → 'github:srid/haskell-flake/8bffb2266b38fe7983d14fc4858aea2e64ad2175?narHash=sha256-h9cBnB1hfF73g/K7FJtsOdcE0mbi00qBGCJ%2BCFH7jRQ%3D' (2024-06-09)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/d226935fd75012939397c83f6c385e4d6d832288?narHash=sha256-HV97wqUQv9wvptiHCb3Y0/YH0lJ60uZ8FYfEOIzYEqI%3D' (2024-06-07)
  → 'github:nixos/nixpkgs/3f84a279f1a6290ce154c5531378acc827836fbb?narHash=sha256-u1fA0DYQYdeG%2B5kDm1bOoGcHtX0rtC7qs2YA2N1X%2B%2BI%3D' (2024-06-13)

Author: github-actions[bot]