flake.lock: Update (#350)

Automated changes by the
[update-flake-lock](https://github.com/DeterminateSystems/update-flake-lock)
GitHub Action.

```
Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/dc460ec76cbff0e66e269457d7b728432263166c?narHash=sha256-PbABj4tnbWFMfBp6OcUK5iGy1QY%2B/Z96ZcLpooIbuEI%3D' (2024-11-11)
  → 'github:nixos/nixpkgs/5e4fbfb6b3de1aa2872b76d49fafc942626e2add?narHash=sha256-OZiZ3m8SCMfh3B6bfGC/Bm4x3qc1m2SVEAlkV6iY7Yg%3D' (2024-11-15)
```

### Running GitHub Actions on this PR

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by a GitHub Action.

To run GitHub Actions workflows on this PR, run:

```sh
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
```

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