Bump @next/mdx from 15.2.4 to 15.3.0

Bumps [@next/mdx](https://github.com/vercel/next.js/tree/HEAD/packages/next-mdx) from 15.2.4 to 15.3.0.
- [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/v15.3.0/packages/next-mdx)

---
updated-dependencies:
- dependency-name: "@next/mdx"
  dependency-version: 15.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

yarn.lock

@@ -2286,9 +2286,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@next/mdx@npm:^15.2.4":
-  version: 15.2.4
-  resolution: "@next/mdx@npm:15.2.4"
+"@next/mdx@npm:^15.3.0":
+  version: 15.3.0
+  resolution: "@next/mdx@npm:15.3.0"
   dependencies:
     source-map: "npm:^0.7.0"
   peerDependencies:
@@ -2299,7 +2299,7 @@ __metadata:
       optional: true
     "@mdx-js/react":
       optional: true
-  checksum: 10c0/df7a4c16ddbefded40195578a04e6875148677a8b9279743a7c4bfc1281b0fb14e521a644820e4727e9796965c51ab7d2d58240a4d9efcb19420d380c6272d35
+  checksum: 10c0/04d533c6932a008b13b851e6efd0099e5e4ceacfcf74b5cfe26e829dee263fb08868a240b08720630e595ff844126fda095b5ce3617ddecfa4bd4b282f139606
   languageName: node
   linkType: hard
 
@@ -13357,7 +13357,7 @@ __metadata:
     "@mdx-js/react": "npm:^3.1.0"
     "@microsoft/eslint-formatter-sarif": "npm:^3.1.0"
     "@next/eslint-plugin-next": "npm:15.2.4"
-    "@next/mdx": "npm:^15.2.4"
+    "@next/mdx": "npm:^15.3.0"
     "@prisma/client": "npm:^6.5.0"
     "@prisma/extension-accelerate": "npm:^1.3.0"
     "@radix-ui/react-accordion": "npm:^1.2.4"