deps(deps): bump @astrojs/mdx from 4.3.6 to 4.3.7

Bumps [@astrojs/mdx](https://github.com/withastro/astro/tree/HEAD/packages/integrations/mdx) from 4.3.6 to 4.3.7.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/withastro/astro/releases"><code>@​astrojs/mdx</code>'s releases</a>.</em></p>
<blockquote>
<h2><code>@​astrojs/mdx</code><a href="https://github.com/4"><code>@​4</code></a>.3.7</h2>
<h3>Patch Changes</h3>
<ul>
<li>Updated dependencies []:
<ul>
<li><code>@​astrojs/markdown-remark</code><a href="https://github.com/6"><code>@​6</code></a>.3.8</li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/withastro/astro/blob/main/packages/integrations/mdx/CHANGELOG.md"><code>@​astrojs/mdx</code>'s changelog</a>.</em></p>
<blockquote>
<h2>4.3.7</h2>
<h3>Patch Changes</h3>
<ul>
<li>Updated dependencies []:
<ul>
<li><code>@​astrojs/markdown-remark</code><a href="https://github.com/6"><code>@​6</code></a>.3.8</li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/withastro/astro/commit/3bb14b7dbbc236f55096631401703a290321031e"><code>3bb14b7</code></a> [ci] release (<a href="https://github.com/withastro/astro/tree/HEAD/packages/integrations/mdx/issues/14466">#14466</a>)</li>
<li>See full diff in <a href="https://github.com/withastro/astro/commits/@astrojs/mdx@4.3.7/packages/integrations/mdx">compare view</a></li>
</ul>
</details>
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