chore: update flake.lock (#384)

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/73a58b0f9aa664872edd04c7889a6b30850a2881?narHash=sha256-YmIj7UPA67J6Nn7WFek%2BboKx4AoPlDHTs%2B04MPO4Z24%3D' (2024-07-20)
  → 'github:nvim-neorocks/neorocks/4821430fa9fd226b2542ebafa9591bb97ebbb4f2?narHash=sha256-kPoHyFs98K5tQchiRWWxn56XdEolyWnjszmfV3dgsbY%3D' (2024-07-27)
• Updated input 'neorocks/neovim-nightly':
    'github:nix-community/neovim-nightly-overlay/d9fcc47baa026c7df9a9789d5e825b4f13a9239a?narHash=sha256-dvDYa%2BZ2qZHTibmeUbKKIpR2jONO4UPbyHiDgYhgoMQ%3D' (2024-07-19)
  → 'github:nix-community/neovim-nightly-overlay/4d8b2d84d26e99dab6c823ec54dea4f7043e10b8?narHash=sha256-P5jP2qPycCDAFHYQqwhhGABbWFRq1t9PsHyDUytcz48%3D' (2024-07-27)
• Updated input 'neorocks/neovim-nightly/neovim-src':
    'github:neovim/neovim/f61efe3fe77c9a517dccb9fd5ff7f16c0660ced4?narHash=sha256-qPgppLqmnd0OnHLMo4cGPZSUyLbcw9nThWO4sJC8bWI%3D' (2024-07-18)
  → 'github:neovim/neovim/aa853f362addded400d52d8fdfe5247c300c0e89?narHash=sha256-OT0eI7sTzcgSnQqPEOXqFd2iVULQ80BTgXr4haWO1s0%3D' (2024-07-26)
• Updated input 'neorocks/neovim-nightly/nixpkgs':
    'github:NixOS/nixpkgs/7e2fb8e0eb807e139d42b05bf8e28da122396bed?narHash=sha256-/%2BYw4tW/mcTRKmkEAO64ObzCQClpSUZpk2flUD9GDHE%3D' (2024-07-18)
  → 'github:NixOS/nixpkgs/733453ac54a40997a6a690b60f3942d79560247c?narHash=sha256-Hwm46lggqtihMaRuxbNaC1ACcU2a0jO/HXqrdjMatXk%3D' (2024-07-26)
• Updated input 'neorocks/nixpkgs':
    'github:nixos/nixpkgs/ad0111043c09f7d0f6b9f039882cbf350d4f7d49?narHash=sha256-X5%2BQA5K3J2KA20YEaBJ%2BGKDj/XIb5PutHmphgYQUszA%3D' (2024-07-19)
  → 'github:nixos/nixpkgs/48bacf585a51d953def8bff32087970f273052e2?narHash=sha256-NMDotPxtCNvmRnUo/YuxNOpN8%2BUMONBlNBnRFsGHADQ%3D' (2024-07-27)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/6e14bbce7bea6c4efd7adfa88a40dac750d80100?narHash=sha256-pFSxgSZqZ3h%2B5Du0KvEL1ccDZBwu4zvOil1zzrPNb3c%3D' (2024-07-20)
  → 'github:nixos/nixpkgs/e36e9f57337d0ff0cf77aceb58af4c805472bfae?narHash=sha256-OpX0StkL8vpXyWOGUD6G%2BMA26wAXK6SpT94kLJXo6B4%3D' (2024-07-27)
```

### 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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