Bump @next/mdx from 14.2.15 to 15.0.2

Bumps [@next/mdx](https://github.com/vercel/next.js/tree/HEAD/packages/next-mdx) from 14.2.15 to 15.0.2.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](https://github.com/vercel/next.js/commits/v15.0.2/packages/next-mdx)

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

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

package.json

@@ -17,7 +17,7 @@
   "dependencies": {
     "@mdx-js/loader": "^3.0.1",
     "@mdx-js/react": "^3.0.1",
-    "@next/mdx": "^14.2.15",
+    "@next/mdx": "^15.0.2",
     "@styled-icons/fa-brands": "^10.47.0",
     "@styled-icons/fa-solid": "^10.47.0",
     "@styled-icons/ionicons-outline": "^10.46.0",