flake.lock: Update

Flake lock file updates:

• Updated input 'nixlib':
    'github:nix-community/nixpkgs.lib/1418bc28a52126761c02dd3d89b2d8ca0f521181?narHash=sha256-tmpqTSWVRJVhpvfSN9KXBvKEXplrwKnSZNAoNPf/S/s%3D' (2025-01-12)
  → 'github:nix-community/nixpkgs.lib/9100109c11b6b5482ea949c980b86e24740dca08?narHash=sha256-jj/HBJFSapTk4LfeJgNLk2wEE2BO6dgBYVRbXMNOCeM%3D' (2025-07-20)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/2f9e2f85cb14a46410a1399aa9ea7ecf433e422e?narHash=sha256-FWlPMUzp0lkQBdhKlPqtQdqmp%2B/C%2B1MBiEytaYfrCTY%3D' (2025-01-12)
  → 'github:NixOS/nixpkgs/83e677f31c84212343f4cc553bab85c2efcad60a?narHash=sha256-XSQy6wRKHhRe//iVY5lS/ZpI/Jn6crWI8fQzl647wCg%3D' (2025-07-22)

Author: github-actions[bot]