chore(deps): bump next in /build.washingtonpost.com

Bumps [next](https://github.com/vercel/next.js) from 14.0.3 to 14.2.21.
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v14.0.3...v14.2.21)

---
updated-dependencies:
- dependency-name: next
  dependency-type: direct:production
...

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

build.washingtonpost.com/package.json

@@ -34,7 +34,7 @@
     "fuse.js": "^6.6.2",
     "gray-matter": "^4.0.2",
     "lz-string": "^1.4.4",
-    "next": "14.0.3",
+    "next": "14.2.21",
     "next-mdx-remote": "^4.4.1",
     "next-themes": "0.2.1",
     "param-case": "^3.0.4",