build(deps): bump cachix/install-nix-action from 31.9.1 to 31.10.0 (#491)

Bumps
[cachix/install-nix-action](https://github.com/cachix/install-nix-action)
from 31.9.1 to 31.10.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/cachix/install-nix-action/releases">cachix/install-nix-action's
releases</a>.</em></p>
<blockquote>
<h2>v31.10.0</h2>
<h2>What's Changed</h2>
<ul>
<li>nix: 2.33.3 -&gt; 2.34.0 by <a
href="https://github.com/github-actions"><code>@​github-actions</code></a>[bot]
in <a
href="https://redirect.github.com/cachix/install-nix-action/pull/267">cachix/install-nix-action#267</a>
Release notes: <a
href="https://discourse.nixos.org/t/nix-2-34-0-released/75818">https://discourse.nixos.org/t/nix-2-34-0-released/75818</a></li>
</ul>
<p>⚠️ Nix 2.34.0 contains a regression that, under certain scenarios (a
<code>trusted-user</code> + a client-side <code>netrc-file</code>),
breaks authentication with private caches that rely on
<code>netrc</code> files. This regression affects
<code>cachix/cachix-action</code>.
We advise sticking with 2.33.3 until a patch is released.</p>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/cachix/install-nix-action/compare/v31.9.1...v31.10.0">https://github.com/cachix/install-nix-action/compare/v31.9.1...v31.10.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/cachix/install-nix-action/commit/19effe9fe722874e6d46dd7182e4b8b7a43c4a99"><code>19effe9</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/install-nix-action/issues/267">#267</a>
from cachix/create-pull-request/patch</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/d3f3b99dd19236cb244609944767f2864ec646ee"><code>d3f3b99</code></a>
nix: 2.33.3 -&gt; 2.34.0</li>
<li>See full diff in <a
href="https://github.com/cachix/install-nix-action/compare/2126ae7fc54c9df00dd18f7f18754393182c73cd...19effe9fe722874e6d46dd7182e4b8b7a43c4a99">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=cachix/install-nix-action&package-manager=github_actions&previous-version=31.9.1&new-version=31.10.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -128,7 +128,7 @@ jobs:
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
-      - uses: cachix/install-nix-action@2126ae7fc54c9df00dd18f7f18754393182c73cd  # v31.9.1
+      - uses: cachix/install-nix-action@19effe9fe722874e6d46dd7182e4b8b7a43c4a99  # v31.10.0
         with:
           nix_path: nixpkgs=channel:nixos-unstable