flake.lock: Update

[yannham]

Automated changes by the update-flake-lock GitHub Action.

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/18036c0be90f4e308ae3ebcab0e14aae0336fe42' (2023-08-04)
  → 'github:NixOS/nixpkgs/ce5e4a6ef2e59d89a971bc434ca8ca222b9c7f5e' (2023-08-10)

Running GitHub Actions on this PR

GitHub Actions will not run workflows on pull requests which are opened by a GitHub Action.

To run GitHub Actions workflows on this PR, run:

git branch -D update_flake_lock_action
git fetch origin
git checkout update_flake_lock_action
git commit --amend --no-edit
git push origin update_flake_lock_action --force