Update flake.lock

[github-actions[bot]]

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

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/9790f3242da2152d5aa1976e3e4b8b414f4dd206' (2023-06-27)
  → 'github:nixos/nixpkgs/b72aa95f7f096382bff3aea5f8fde645bca07422' (2023-06-30)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/e18dc963075ed115afb3e312b64643bf8fd4b474' (2023-06-27)
  → 'github:nixos/nixpkgs/4bc72cae107788bf3f24f30db2e2f685c9298dc9' (2023-06-29)

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

[StarrFox]

good work