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/6fb7349157ee1bffd053b1fdd454aa74ff7b4aee?narHash=sha256-/MjivcZIz8dyLOTFdJzS5Yazt2QCePQBh8uZooODaYw%3D' (2025-06-22)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/2f9e2f85cb14a46410a1399aa9ea7ecf433e422e?narHash=sha256-FWlPMUzp0lkQBdhKlPqtQdqmp%2B/C%2B1MBiEytaYfrCTY%3D' (2025-01-12)
  → 'github:NixOS/nixpkgs/d7bb1922f0bb3d0c990f56f9cdb767fdb20a5f22?narHash=sha256-sRLyRiC7TezRbbjGJwUFOgb2xMbSr3wQ0oJKfYlQ6s0%3D' (2025-06-25)

Author: github-actions[bot]