chore(example/simple): Update flake.lock

Flake lock file updates:

• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/2cccadc' (2025-11-21)
  → 'github:hercules-ci/flake-parts/5792860' (2026-02-02)
• Updated input 'flake-parts/nixpkgs-lib':
    'github:nix-community/nixpkgs.lib/719359f' (2025-10-29)
  → 'github:nix-community/nixpkgs.lib/7271616' (2026-02-01)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/a672be6' (2025-12-05)
  → 'github:nixos/nixpkgs/2343bbb' (2026-02-11)
• Updated input 'process-compose-flake':
    'github:Platonic-Systems/process-compose-flake/3667881' (2025-12-05)
  → 'github:Platonic-Systems/process-compose-flake/99bea96' (2026-01-08)
• Updated input 'services-flake':
    'github:juspay/services-flake/648cf66' (2025-12-05)
  → 'github:juspay/services-flake/a3172b8' (2026-02-11)

Author: github-actions[bot]