Cardano Updates

PShow instance for PNatural, expose PShow method

Flake lock file updates:

• Updated input 'CHaP':
    'github:input-output-hk/cardano-haskell-packages/fb6dc748b69f2feb8257c7b3f1bbf3d8a7d5377e?narHash=sha256-bbdaZgdzBQbXfsMqmqkEpuMETuCwFU4EJOExq3lIIFA%3D' (2025-12-23)
  → 'github:input-output-hk/cardano-haskell-packages/7da010cd68b844ce9a0e2e0db5a0713065da2f76?narHash=sha256-9TexWy0rix2zjRY8tt6Q%2BA6Xj4WLuFL6KN7BMlxl6pk%3D' (2026-01-02)
• Updated input 'haskell-nix':
    'github:input-output-hk/haskell.nix/d3437c58e54ffd274135de46a03e990848540aa7?narHash=sha256-EJM39BZ0YEEaXcOhICJeSxC18CZPNtHACdrq0QyD%2BxE%3D' (2025-12-28)
  → 'github:input-output-hk/haskell.nix/bc0754042e35a3bf9da655f284bef1c9e8b7396a?narHash=sha256-qPb6w5Qro5z9PU10%2BDXipju5R0QLwbe3oeUET6n7c6Y%3D' (2026-01-04)
• Updated input 'haskell-nix/hackage':
    'github:input-output-hk/hackage.nix/c7596b296f4e4a96f20b56eb9bb4fbb06048f034?narHash=sha256-BO%2BlHqIa%2BJ6O1Fo4pSMmjVlFelH3BSX0OT3dchX7g6U%3D' (2025-12-28)
  → 'github:input-output-hk/hackage.nix/7a26d9050e4bd84681295fa6a43ff163420fe6b7?narHash=sha256-tK/DYq6BPBKJ77S883LmrCalI4Z/CcDz2nl6zmwGlGA%3D' (2026-01-04)
• Updated input 'haskell-nix/hackage-for-stackage':
    'github:input-output-hk/hackage.nix/fa764e1164000047014f4f016a4cbc416e46c17e?narHash=sha256-smpv0RiaaAckra3B/GD/y%2BhNLGBVcbIFc2edmxFJVQA%3D' (2025-12-28)
  → 'github:input-output-hk/hackage.nix/a641a88a098f6ef3abbe8a8e85fb9f104c532343?narHash=sha256-oSaUhrrDU11sMMgW/5ymN2KCzGCyx2Q9NTEmuXzhlDQ%3D' (2026-01-04)
• Updated input 'haskell-nix/stackage':
    'github:input-output-hk/stackage.nix/1f36f699286d8d86329e6479f675e3779f72df66?narHash=sha256-F9dVFJ7ZU8DwbX2%2Bxj%2BlT8hWXkABh71rOnuQTJMlcjE%3D' (2025-12-27)
  → 'github:input-output-hk/stackage.nix/c2a17547e07da8bed3f646743e4271bc1800235e?narHash=sha256-0fL%2BWNN8MsCiXdhbwMPEeC4vdpxhNA2AESEyv%2BSKDno%3D' (2026-01-04)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/9ed2a1061512bafbd89cec9b4ba65a7e838308f9?narHash=sha256-YEUkAsjRyR3/JDQDUEVInRNIPVEFQSRDFioZxtfFslg%3D' (2025-12-28)
  → 'github:NixOS/nixpkgs/c4c4c0fc51bf3b24b97e32f3def5a8dbf7cb4c5e?narHash=sha256-4Hk5jInRXNBIzJPMQ59jtMeUd38QxJNV4Jncjc%2BWVNM%3D' (2026-01-04)
• Updated input 'pre-commit-hooks':
    'github:cachix/pre-commit-hooks.nix/b68b780b69702a090c8bb1b973bab13756cc7a27?narHash=sha256-t3T/xm8zstHRLx%2BpIHxVpQTiySbKqcQbK%2Br%2B01XVKc0%3D' (2025-12-16)
  → 'github:cachix/pre-commit-hooks.nix/f0927703b7b1c8d97511c4116eb9b4ec6645a0fa?narHash=sha256-6MkqajPICgugsuZ92OMoQcgSHnD6sJHwk8AxvMcIgTE%3D' (2026-01-01)
• Updated input 'pre-commit-hooks/flake-compat':
    'github:edolstra/flake-compat/f387cd2afec9419c8ee37694406ca490c3f34ee5?narHash=sha256-XKUZz9zewJNUj46b4AJdiRZJAvSZ0Dqj2BNfXvFlJC4%3D' (2025-10-27)
  → 'github:NixOS/flake-compat/5edf11c44bc78a0d334f6334cdaf7d60d732daab?narHash=sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns%3D' (2025-12-29)