flake.lock: Update (#819)

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/9f918d616c5321ad374ae6cb5ea89c9e04bf3e58?narHash=sha256-/DJBI6trCeVnasdjUo9pbnodCLZcFqnVZiLUfqLH4jA%3D' (2024-07-31)
  → 'github:NixOS/nixpkgs/5e0ca22929f3342b19569b21b2f3462f053e497b?narHash=sha256-M0xJ3FbDUc4fRZ84dPGx5VvgFsOzds77KiBMW/mMTnI%3D' (2024-08-09)

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

Author: github-actions[bot]