Update flake.lock

[github-actions]

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

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/7cc0bff31a3a705d3ac4fdceb030a17239412210?narHash=sha256-7QEFnKkzD13SPxs%2BUFR5bUFN2fRw%2BGlL0am72ZjNre4%3D' (2024-12-27)
  → 'github:NixOS/nixpkgs/a27871180d30ebee8aa6b11bf7fef8a52f024733?narHash=sha256-Q4HuFAvoKAIiTRZTUxJ0ZXeTC7lLfC9/dggGHNXNlCw%3D' (2025-01-03)

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