chore(flake): 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/a5e4bbcb4780c63c79c87d29ea409abf097de3f7?narHash=sha256-9ZR/Rbx5/Z/JZf5ehVNMoz/s5xjpP0a22tL6qNvLt5E%3D' (2024-04-21)
  → 'github:NixOS/nixpkgs/b500489fd3cf653eafc075f9362423ad5cdd8676?narHash=sha256-KtvQeE12MSkCOhvVmnmcZCjnx7t31zWin2XVSDOwBDE%3D' (2024-04-22)
• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/6143fc5eeb9c4f00163267708e26191d1e918932?narHash=sha256-%2Bz/XjO3QJs5rLE5UOf015gdVauVRQd2vZtsFkaXBq2Y%3D' (2024-04-21)
  → 'github:NixOS/nixpkgs/572af610f6151fd41c212f897c71f7056e3fb518?narHash=sha256-cfh1hi%2B6muQMbi9acOlju3V1gl8BEaZBXBR9jQfQi4U%3D' (2024-04-23)
• Updated input 'nixvim':
    'github:nix-community/nixvim/5bd3cb1ef634f1fc9e88dd5c2a21f11830bf53d1?narHash=sha256-%2B7wCMcTq4/tWw7en91cEjFHEMSk%2BFR/xnw%2BuDNszBSI%3D' (2024-04-22)
  → 'github:nix-community/nixvim/7c59615585f691b560d9522c94d8f3195853ca8e?narHash=sha256-ObeER1qB/i06lk7jQqVp9DdTKnykNaojOVoX9GcCoRc%3D' (2024-04-24)

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