Bump @astrojs/mdx from 4.2.3 to 4.2.4 (#261)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.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",