flake.lock: Update (#906)

Flake lock file updates:

• Updated input 'nixos-infra':
    'github:NixOS/infra/e80f2578e93771a3beaa29dd2ecf6ed56fcb1222?narHash=sha256-mndRqwgnUzGKooQeR18QtFaKCMXGlrZR/Wjv8aZq9zU%3D' (2025-03-29)
  → 'github:NixOS/infra/afa9286423010d9adea4013ac0547a349e828bef?narHash=sha256-kieGMVK3pI0UyA7RkjFch2N2c0NrsMh8wcWWVXhryBc%3D' (2025-04-05)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/5e5402ecbcb27af32284d4a62553c019a3a49ea6?narHash=sha256-gWd4urRoLRe8GLVC/3rYRae1h%2BxfQzt09xOfb0PaHSk%3D' (2025-03-27)
  → 'github:NixOS/nixpkgs/2c8d3f48d33929642c1c12cd243df4cc7d2ce434?narHash=sha256-F7n4%2BKOIfWrwoQjXrL2wD9RhFYLs2/GGe/MQY1sSdlE%3D' (2025-04-02)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]