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/b1b559392d6fc44626cef9d5b7821421cc7adcdc?narHash=sha256-yCKoVpny9PSGTcSrCtXq77FuKFlq9Hf81ULVgCvkfmc%3D' (2025-06-12)
• Updated input 'hackage-nix':
    'github:input-output-hk/hackage.nix/4e439db2317da42c2dfa5a50b40bc23130ea8601?narHash=sha256-3XgqzEacca8r0sdsDJTo6fgOmtatWdbfbycjEX1rdlU%3D' (2025-06-06)
  → 'github:input-output-hk/hackage.nix/576db1b7b6a1faadc82995e1ee756ee34d6e09f9?narHash=sha256-XRCfjyAJkcUMTOFi8k%2BqIz42yFJFFkB8f3vJO99VK9s%3D' (2025-06-15)

Author: github-actions[bot]