Update flake.lock

[github-actions]

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

Flake lock file updates:

• Updated input 'nixpkgs':
    'https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.2305.492489%2Brev-0561103cedb11e7554cf34cea81e5f5d578a4753/018c4b0c-45b7-7a58-94ff-21fd822349d6/source.tar.gz?narHash=sha256-hh0S14E816Img0tPaNQSEKFvSscSIrvu1ypubtfh6M4%3D' (2023-12-05)
  → 'https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.2305.492623%2Brev-312ab59e8ade69e6083017bd9b98a2919f1fb86a/018c8a80-60af-7120-a229-5a4835d289c2/source.tar.gz?narHash=sha256-4bMPFv/bs5g1nEsXQwXlrAGJgjv1Ilr0ejdaTkBwQLs%3D' (2023-12-20)

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