build(deps): bump @astrojs/mdx from 4.0.7 to 4.0.8

Bumps [@astrojs/mdx](https://github.com/withastro/astro/tree/HEAD/packages/integrations/mdx) from 4.0.7 to 4.0.8.
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/integrations/mdx/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/@astrojs/[email protected]/packages/integrations/mdx)

---
updated-dependencies:
- dependency-name: "@astrojs/mdx"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -14,7 +14,7 @@
   },
   "dependencies": {
     "@astrojs/check": "0.9.4",
-    "@astrojs/mdx": "4.0.7",
+    "@astrojs/mdx": "4.0.8",
     "@astrojs/rss": "4.0.11",
     "@astrojs/sitemap": "3.2.1",
     "@astrojs/tailwind": "5.1.5",