Bump postcss from 8.5.10 to 8.5.18 in /docs (#1744)

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.10 to
8.5.18.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/postcss/postcss/releases">postcss's
releases</a>.</em></p>
<blockquote>
<h2>8.5.18</h2>
<ul>
<li>Restricted loading previous source maps file to the
<code>opts.from</code> folder for security reasons (use <code>unsafeMap:
true</code> to disable the check).</li>
</ul>
<h2>8.5.17</h2>
<ul>
<li>Fixed <code>Maximum call stack size exceeded</code> error.</li>
<li>Fixed Prototype hijacking for <code>postcss.fromJSON()</code>.</li>
<li>Fixed <code>Input#origin()</code> for unmapped end position (by <a
href="https://github.com/chatman-media"><code>@​chatman-media</code></a>).</li>
</ul>
<h2>8.5.16</h2>
<ul>
<li>Fixed <code>Input#origin()</code> position (by <a
href="https://github.com/mizdra"><code>@​mizdra</code></a>).</li>
<li>Fixed <code>raws</code> after rehydrating a JSON AST (by <a
href="https://github.com/sarathfrancis90"><code>@​sarathfrancis90</code></a>).</li>
<li>Fixed putting parent-less node in <code>nodes</code> of new node (by
<a
href="https://github.com/MahinAnowar"><code>@​MahinAnowar</code></a>).</li>
<li>Fixed computing <code>offset</code> in <code>positionBy()</code> (by
<a
href="https://github.com/greymoth-jp"><code>@​greymoth-jp</code></a>).</li>
<li>Fixed <code>rangeBy()</code> on <code>index: 0</code> (by <a
href="https://github.com/sarathfrancis90"><code>@​sarathfrancis90</code></a>).</li>
</ul>
<h2>8.5.15</h2>
<ul>
<li>Fixed declaration parsing performance (by <a
href="https://github.com/homanp"><code>@​homanp</code></a>).</li>
</ul>
<h2>8.5.14</h2>
<ul>
<li>Fixed custom syntax regression (by <a
href="https://github.com/43081j"><code>@​43081j</code></a>).</li>
</ul>
<h2>8.5.13</h2>
<ul>
<li>Fixed <code>postcss-scss</code> commend regression.</li>
</ul>
<h2>8.5.12</h2>
<ul>
<li>Fixed reading any file via user-generated CSS.</li>
<li>Added <code>opts.unsafeMap</code> to disable checks.</li>
</ul>
<h2>8.5.11</h2>
<ul>
<li>Fixed nested brackets parsing performance (by <a
href="https://github.com/offset"><code>@​offset</code></a>).</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/postcss/postcss/blob/main/CHANGELOG.md">postcss's
changelog</a>.</em></p>
<blockquote>
<h2>8.5.18</h2>
<ul>
<li>Restricted loading previous source maps file to the
<code>opts.from</code> folder for security reasons (use <code>unsafeMap:
true</code> to disable the check).</li>
</ul>
<h2>8.5.17</h2>
<ul>
<li>Fixed <code>Maximum call stack size exceeded</code> error.</li>
<li>Fixed Prototype hijacking for <code>postcss.fromJSON()</code>.</li>
<li>Fixed <code>Input#origin()</code> for unmapped end position (by <a
href="https://github.com/chatman-media"><code>@​chatman-media</code></a>).</li>
</ul>
<h2>8.5.16</h2>
<ul>
<li>Fixed <code>Input#origin()</code> position (by <a
href="https://github.com/mizdra"><code>@​mizdra</code></a>).</li>
<li>Fixed <code>raws</code> after rehydrating a JSON AST (by <a
href="https://github.com/sarathfrancis90"><code>@​sarathfrancis90</code></a>).</li>
<li>Fixed putting parent-less node in <code>nodes</code> of new node (by
<a
href="https://github.com/MahinAnowar"><code>@​MahinAnowar</code></a>).</li>
<li>Fixed computing <code>offset</code> in <code>positionBy()</code> (by
<a
href="https://github.com/greymoth-jp"><code>@​greymoth-jp</code></a>).</li>
<li>Fixed <code>rangeBy()</code> on <code>index: 0</code> (by <a
href="https://github.com/sarathfrancis90"><code>@​sarathfrancis90</code></a>).</li>
</ul>
<h2>8.5.15</h2>
<ul>
<li>Fixed declaration parsing performance (by <a
href="https://github.com/homanp"><code>@​homanp</code></a>).</li>
</ul>
<h2>8.5.14</h2>
<ul>
<li>Fixed custom syntax regression (by <a
href="https://github.com/43081j"><code>@​43081j</code></a>).</li>
</ul>
<h2>8.5.13</h2>
<ul>
<li>Fixed <code>postcss-scss</code> commend regression.</li>
</ul>
<h2>8.5.12</h2>
<ul>
<li>Fixed reading any file via user-generated CSS.</li>
<li>Added <code>opts.unsafeMap</code> to disable checks.</li>
</ul>
<h2>8.5.11</h2>
<ul>
<li>Fixed nested brackets parsing performance (by <a
href="https://github.com/offset"><code>@​offset</code></a>).</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/postcss/postcss/commit/4c0d194c136fd374495d0993c890d794cab65b81"><code>4c0d194</code></a>
Release 8.5.18 version</li>
<li><a
href="https://github.com/postcss/postcss/commit/92b4e7891ec7b811821d01acc8aa0f010caf41e2"><code>92b4e78</code></a>
Update dependencies</li>
<li><a
href="https://github.com/postcss/postcss/commit/95663d3eb7ba26f4854dd19d3b4f4425760cf56c"><code>95663d3</code></a>
Limit where source map can be loaded for security reasons</li>
<li><a
href="https://github.com/postcss/postcss/commit/74e25ae9f4efaa56a41a449064a655d7da78072c"><code>74e25ae</code></a>
Release 8.5.17 version</li>
<li><a
href="https://github.com/postcss/postcss/commit/d1518afd5a88f42728b30b87f8917210f363f9f1"><code>d1518af</code></a>
Fix Maximum call stack size exceeded error</li>
<li><a
href="https://github.com/postcss/postcss/commit/2421312ffea96ba77b35ce24a1b2d9c2e22b5e83"><code>2421312</code></a>
Fix linter</li>
<li><a
href="https://github.com/postcss/postcss/commit/a50352c583df991710f92ccac25b36304695161a"><code>a50352c</code></a>
Fix CI</li>
<li><a
href="https://github.com/postcss/postcss/commit/33948f0969bb858acdd52c9692e3a785a3ed0a73"><code>33948f0</code></a>
Prevent prototype hijacking in fromJSON</li>
<li><a
href="https://github.com/postcss/postcss/commit/2131909351161cd2c5fc2be58b14919a873ea824"><code>2131909</code></a>
Update dependencies</li>
<li><a
href="https://github.com/postcss/postcss/commit/93440abcca92793b31c5d1fdf5f2da7b58b27599"><code>93440ab</code></a>
Fix non-closed <code>\&lt;div align=&quot;center&quot;&gt;</code> in
README (<a
href="https://redirect.github.com/postcss/postcss/issues/2110">#2110</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/postcss/postcss/compare/8.5.10...8.5.18">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~GitHub%20Actions">GitHub Actions</a>, a new
releaser for postcss since your current version.</p>
</details>
<br />

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

Author: dependabot[bot]

docs/package.json

@@ -48,7 +48,7 @@
     "markdownlint-cli2": "^0.22.0",
     "markdownlint-rule-relative-links": "^5.1.0",
     "oxlint": "1.75.0",
-    "postcss": "^8.5.10",
+    "postcss": "^8.5.18",
     "prettier": "^3.8.0",
     "tailwindcss": "^4.2.1",
     "typescript": "^5.7.3"