Bump @astrojs/mdx from 4.2.3 to 4.2.4

Bumps [@astrojs/mdx](https://github.com/withastro/astro/tree/HEAD/packages/integrations/mdx) from 4.2.3 to 4.2.4.
- [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/mdx@4.2.4/packages/integrations/mdx)

---
updated-dependencies:
- dependency-name: "@astrojs/mdx"
  dependency-version: 4.2.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

bun.lock

@@ -23,7 +23,7 @@
     "preview": "astro preview"
   },
   "dependencies": {
-    "@astrojs/mdx": "^4.2.3",
+    "@astrojs/mdx": "^4.2.4",
     "@astrojs/sitemap": "^3.3.0",
     "@astrojs/svelte": "^7.0.9",
     "@date-fns/tz": "^1.2.0",