flake: update flake.lock

[github-actions]

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

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/5083ec887760adfe12af64830a66807423a859a7?narHash=sha256-D1FNZ70NmQEwNxpSSdTXCSklBH1z2isPR84J6DQrJGs%3D' (2024-11-18)
  → 'github:NixOS/nixpkgs/929116e316068c7318c54eb4d827f7d9756d5e9c?narHash=sha256-aLJxoTDDSqB%2B/3orsulE6/qdlX6MzDLIITLZqdgMpqo%3D' (2024-12-05)

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