flake.lock: Update

Flake lock file updates:

• Updated input 'CHaP':
    'github:intersectmbo/cardano-haskell-packages/4a6a3769c8cc8297ae8722e51fa5a4700b2db759?narHash=sha256-RQpTHF6VDPWELM4MHQahZrpEtv6ZxSx8oceWGAzJKco%3D' (2025-07-01)
  → 'github:intersectmbo/cardano-haskell-packages/fe5f8c99284ca892efe46d91a9ccb00aa76f2525?narHash=sha256-LhTRY6kgvg5cGfoQ9FD2v15WucqO4C%2BVLMHa9JP/Zi4%3D' (2025-07-17)
• Updated input 'hackageNix':
    'github:input-output-hk/hackage.nix/1df55daef81b543cf3ccab4b1a5a536e32d8ce2a?narHash=sha256-DwjXWJqd3%2BUhvx1OewJDMGxtny20vQvRF4iB%2BH8a3fs%3D' (2025-06-26)
  → 'github:input-output-hk/hackage.nix/166c4d709948dbde88aeb01e79e6dd8585e0ba3f?narHash=sha256-R7J1gy9FquhzY9XYaNHCABxqXffXGzZB%2BxDGjRWjAjI%3D' (2025-07-19)

Author: github-actions[bot]