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/9a46cacd941c108492cd4cee5d29735e8cd8ee65?narHash=sha256-g8SMcVN1v51Muz6a%2BxJkB92mPx1jsg%2BsjHKvQ3Wj/jY%3D' (2025-10-07)
• Updated input 'hackage-nix':
    'github:input-output-hk/hackage.nix/d1a38ebcb53e02ef6dd7ccd4bf1e590534895926?narHash=sha256-xkBMfVgvQSRrUhaeV%2B05za9CdiISB8ByW8BPvKbg2%2B8%3D' (2025-10-01)
  → 'github:input-output-hk/hackage.nix/a68e215a7a13c43b70499f6a8d76d85b4cd253b5?narHash=sha256-xu7vHX4DarPypnFYsqxf3C1CSKJQ53l0DiQWUJ7AvVc%3D' (2025-10-12)

Author: github-actions[bot]