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/bbf172e0d11e3842e543df101dee223f05a2332e?narHash=sha256-J0PlznW05SByIJZvP90JvFMvnHsP%2BRs/qwLogpConI4%3D' (2025-09-24)
• Updated input 'hackage-nix':
    'github:input-output-hk/hackage.nix/7e49da09235b2a09deda5ab6605ccbde130df303?narHash=sha256-/99VDx6Xf0dN6Fc9YfOSs6iJ%2ByHB5O%2BWD3DcCMbpPXM%3D' (2025-09-10)
  → 'github:input-output-hk/hackage.nix/d846bd979acc40fe8c4bcbb4b314eae1011b6394?narHash=sha256-laesaoC5KWZBpvBB/oBrNWHxNt0QpTf0Gjg5mR2m0IM%3D' (2025-09-28)

Author: github-actions[bot]