build(deps): bump cachix/install-nix-action from V27 to 30 (#121)

Bumps
[cachix/install-nix-action](https://github.com/cachix/install-nix-action)
from V27 to 30. This release includes the previously tagged commit.
<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>v30</h2>
<ul>
<li>Nix: 2.24.7 -&gt; 2.24.9, fixing <a
href="https://github.com/NixOS/nix/security/advisories/GHSA-6fjr-mq49-mm2c">GHSA-6fjr-mq49-mm2c</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/cachix/install-nix-action/commit/08dcb3a5e62fa31e2da3d490afc4176ef55ecd72"><code>08dcb3a</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/install-nix-action/issues/217">#217</a>
from Enzime/bump</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/4204e15198ce9348dda13b658f2b0b45397cf9e7"><code>4204e15</code></a>
nix: 2.24.8 -&gt; 2.24.9</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/6a10e2e9fdd7f91408e9f9f95bdc77cf5232b932"><code>6a10e2e</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/install-nix-action/issues/216">#216</a>
from Mic92/nix-bump</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/2bb614e91ac4d68577f12de9f9844d1e89c80b8d"><code>2bb614e</code></a>
Nix: 2.24.7 -&gt; 2.24.8</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/9f70348d77d0422624097c4b7a75563948901306"><code>9f70348</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/install-nix-action/issues/215">#215</a>
from Mic92/nix-bump</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/4f91dc2b65dd81b86830c57b0d3bc75eb0502a25"><code>4f91dc2</code></a>
Nix: 2.24.6 -&gt; 2.24.7</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/3715ab1a11cac9e991980d7b4a28d80c7ebdd8f9"><code>3715ab1</code></a>
bump channel</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/1872f1ff9dba0f554710b1ed396fb6b2263ffdfd"><code>1872f1f</code></a>
Nix: 2.22.1 -&gt; 2.24.6</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/e268b7aa055cc66167f27239fc889bcd1b15683c"><code>e268b7a</code></a>
Merge pull request <a
href="https://redirect.github.com/cachix/install-nix-action/issues/213">#213</a>
from phaer/patch-1</li>
<li><a
href="https://github.com/cachix/install-nix-action/commit/5b8c65d4d79bb2d232054c72252fa78a29c36b8a"><code>5b8c65d</code></a>
Update README: hardware accel is available now...</li>
<li>Additional commits viewable in <a
href="https://github.com/cachix/install-nix-action/compare/V27...v30">compare
view</a></li>
</ul>
</details>
<br />


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</details>

.github/workflows/test.yml

@@ -31,7 +31,7 @@ jobs:
         fetch-depth: 0
 
     # Install Nix and use that to run our tests so our environment matches exactly.
-    - uses: cachix/install-nix-action@V27
+    - uses: cachix/install-nix-action@v30
       with:
         nix_path: nixpkgs=channel:nixos-unstable
 
@@ -56,7 +56,7 @@ jobs:
         fetch-depth: 0
 
     # Install Nix and use that to run our tests so our environment matches exactly.
-    - uses: cachix/install-nix-action@V27
+    - uses: cachix/install-nix-action@v30
       with:
         nix_path: nixpkgs=channel:nixos-unstable