flake.lock: Update

Flake lock file updates:

• Updated input 'CHaP':
    'github:input-output-hk/cardano-haskell-packages/550ea1a4574a8dcde7f8e100841afc163df1c38d?narHash=sha256-hb8r%2BrFgzlaYAl9HAv9/cT0I4OLVnQA/uk0UYpGcsy4%3D' (2025-05-16)
  → 'github:input-output-hk/cardano-haskell-packages/8668deda6ff4c91896a2422f80fabd1450170cf6?narHash=sha256-FZSEC/I8JIgLFS01WTcSOOtfzUr2dHrNTuBfDWCL2dg%3D' (2025-08-27)
• Updated input 'hackage-nix':
    'github:input-output-hk/hackage.nix/358fd3bc4cf82ce548034b273f373948585d60a2?narHash=sha256-WjOAwwMElU567UlOs3Rimvbs2YbgcQFn%2B71sNsty038%3D' (2025-08-05)
  → 'github:input-output-hk/hackage.nix/8bc222ab1820f508f6747d6c48c86d0da1cbb566?narHash=sha256-hlphsgGm/aWQuOe%2BTMM5YwlRa9FvB6jUkSu2MJuuf7E%3D' (2025-08-31)

Author: github-actions[bot]