chore(deps): update cachix/cachix-action action to v13 (#100)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [cachix/cachix-action](https://togithub.com/cachix/cachix-action) |
action | major | `v12` -> `v13` |

---

### Release Notes

<details>
<summary>cachix/cachix-action (cachix/cachix-action)</summary>

### [`v13`](https://togithub.com/cachix/cachix-action/releases/tag/v13):
cachix-action-v13

[Compare
Source](https://togithub.com/cachix/cachix-action/compare/v12...v13)

-   run on node20
-   add `skipAddingSubstituter` to skip running `cachix use`

</details>

---

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.github/workflows/check.yml

@@ -21,7 +21,7 @@ jobs:
     steps:
       - name: Install Nix
         uses: cachix/install-nix-action@v23
-      - uses: cachix/cachix-action@v12
+      - uses: cachix/cachix-action@v13
         with:
           name: nixpkgs-ruby
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'