chore: update flake.lock

[mrcjkb]

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

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/fa35a3c8e17a3de613240fea68f876e5b4896aec?narHash=sha256-7Fu7oazPoYCbDzb9k8D/DdbKrC3aU1zlnc39Y8jy/s8%3D' (2025-02-08)
  → 'github:nixos/nixpkgs/b2243f41e860ac85c0b446eadc6930359b294e79?narHash=sha256-M4ilIfGxzbBZuURokv24aqJTbdjPA9K%2BDtKUzrJaES4%3D' (2025-02-09)

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