chore: update flake.lock (#421)

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

```
Flake lock file updates:

• Updated input 'neorocks':
    'github:nvim-neorocks/neorocks/fc1747137e77ddadaa6e5b607cb0c8793571092b?narHash=sha256-z1BySGXX8kRqmigwNSesV/NGi8yxnJi25PV79Tsbzek%3D' (2024-11-29)
  → 'github:nvim-neorocks/neorocks/f7fe2c43b5bf0c8840963d96dda1fe65e963ade8?narHash=sha256-RxJyXmeLMxwlkkDynaHOy/rrYNuIK61R/nbzoUH2xlM%3D' (2024-11-30)
• Updated input 'neorocks/neovim-nightly':
    'github:nix-community/neovim-nightly-overlay/b09ab000f85a830fac6f599947dfa268227aab31?narHash=sha256-G9W0wi0MD9JvG3bmvWQSMVR684drSlWGY1auhCNxO8c%3D' (2024-11-28)
  → 'github:nix-community/neovim-nightly-overlay/7461a0b228bb48bb02af086f8b9ee9a83583120b?narHash=sha256-MjqyzOEa6s9OGO8SMh5C2kqo57%2BiSNsgDbzPBbpi4QU%3D' (2024-11-30)
• Updated input 'neorocks/neovim-nightly/neovim-src':
    'github:neovim/neovim/76dcc7029b200e1d85024d7ba4a34c602e730dbe?narHash=sha256-y3LmGebXuQhLz9w1IzkDU8b464WvMvPCbIImpVvxmcI%3D' (2024-11-27)
  → 'github:neovim/neovim/2833925cfc688786759d6a980a1ad62b62d20570?narHash=sha256-JF8zmoLdqmbKCSS5Smf/Yj0jEl5f%2BqKhSubhPo/BvUM%3D' (2024-11-29)
• Updated input 'neorocks/nixpkgs':
    'github:nixos/nixpkgs/af51545ec9a44eadf3fe3547610a5cdd882bc34e?narHash=sha256-PYkz6U0bSEaEB1al7O1XsqVNeSNS%2Bs3NVclJw7YC43w%3D' (2024-11-26)
  → 'github:nixos/nixpkgs/226216574ada4c3ecefcbbec41f39ce4655f78ef?narHash=sha256-NskLIz0ue4Uqbza%2B1%2B8UGHuPVr8DrUiLfZu5VS4VQxw%3D' (2024-11-28)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/af51545ec9a44eadf3fe3547610a5cdd882bc34e?narHash=sha256-PYkz6U0bSEaEB1al7O1XsqVNeSNS%2Bs3NVclJw7YC43w%3D' (2024-11-26)
  → 'github:nixos/nixpkgs/4703b8d2c708e13a8cab03d865f90973536dcdf5?narHash=sha256-B5pYT%2BIVaqcrfOekkwKvx/iToDnuQWzc2oyDxzzBDc4%3D' (2024-11-30)
```

### 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:

```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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