Bump postcss from 8.4.39 to 8.4.40 (#102)

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.39 to
8.4.40.
<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>8.4.40</h2>
<ul>
<li>Moved to getter/setter in nodes types to help Sass team (by <a
href="https://github.com/nex3"><code>@​nex3</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>8.4.40</h2>
<ul>
<li>Moved to getter/setter in nodes types to help Sass team (by <a
href="https://github.com/nex3"><code>@​nex3</code></a>).</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/postcss/postcss/commit/3f84b417fc5a857c7e1fbda1ddd79205b61f3bfa"><code>3f84b41</code></a>
Release 8.4.40 version</li>
<li><a
href="https://github.com/postcss/postcss/commit/293ce4510830f5efe5778edd07f4424b2de2c95d"><code>293ce45</code></a>
Merge pull request <a
href="https://redirect.github.com/postcss/postcss/issues/1950">#1950</a>
from nex3/node-getters</li>
<li><a
href="https://github.com/postcss/postcss/commit/fd7ae733f1acfb51a0119250b0a4bd3fc1a7672a"><code>fd7ae73</code></a>
Declare Node subclass attributes as getters</li>
<li><a
href="https://github.com/postcss/postcss/commit/79a6396e4516b0915d23074673fd22f29f01aa59"><code>79a6396</code></a>
Update dependencies</li>
<li><a
href="https://github.com/postcss/postcss/commit/53968d7a97949276f78dba4d6eff09afa2f1b1d0"><code>53968d7</code></a>
Make name more clear</li>
<li>See full diff in <a
href="https://github.com/postcss/postcss/compare/8.4.39...8.4.40">compare
view</a></li>
</ul>
</details>
<br />


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package.json

@@ -10,7 +10,7 @@
         "highlight.js": "^11.10.0",
         "laravel-mix": "^6.0.39",
         "laravel-mix-jigsaw": "^2.0.0",
-        "postcss": "^8.4.39",
+        "postcss": "^8.4.40",
         "postcss-import": "^16.1.0",
         "tailwindcss": "^3.4.7"
     }