Update flake.lock

[github-actions]

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

Flake lock file updates:

• Updated input 'home-manager':
    'github:nix-community/home-manager/36662af' (2026-07-29)
  → 'github:nix-community/home-manager/1790312' (2026-09-18)
• Updated input 'nix-darwin':
    'github:LnL7/nix-darwin/57a3171' (2026-07-19)
  → 'github:LnL7/nix-darwin/4cff07d' (2026-08-16)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/624af66' (2026-07-26)
  → 'github:nixos/nixpkgs/e554fab' (2026-09-17)

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