flake.lock: Update

[yannham]

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

Flake lock file updates:

• Updated input 'flake-utils':
    'github:numtide/flake-utils/a1720a10a6cfe8234c0e93907ffe81be440f4cef' (2023-05-31)
  → 'github:numtide/flake-utils/abfb11bd1aec8ced1c9bb9adfe68018230f4fb3c' (2023-06-19)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/04af42f3b31dba0ef742d254456dc4c14eedac86' (2023-06-17)
  → 'github:NixOS/nixpkgs/3ae20aa58a6c0d1ca95c9b11f59a2d12eebc511f' (2023-06-23)

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