flake.lock: Update

[github-actions[bot]]

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

Flake lock file updates:

• Updated input 'defaultChannel':
    'github:NixOS/nixpkgs/5672bc9dbf9d88246ddab5ac454e82318d094bb8' (2024-04-16)
  → 'github:NixOS/nixpkgs/572af610f6151fd41c212f897c71f7056e3fb518' (2024-04-23)

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