Bump the npm_and_yarn group across 2 directories with 2 updates

Bumps the npm_and_yarn group with 1 update in the /. directory: [postcss](https://github.com/postcss/postcss).
Bumps the npm_and_yarn group with 2 updates in the /examples/nextjs directory: [next](https://github.com/vercel/next.js) and [postcss](https://github.com/postcss/postcss).


Updates `postcss` from 8.4.31 to 8.4.32
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.31...8.4.32)

Updates `next` from 13.5.1 to 14.1.0
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v13.5.1...v14.1.0)

Updates `postcss` from 8.4.31 to 8.4.35
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.31...8.4.32)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: direct:development
  dependency-group: npm_and_yarn-security-group
- dependency-name: next
  dependency-type: direct:production
  dependency-group: npm_and_yarn-security-group
- dependency-name: postcss
  dependency-type: direct:production
  dependency-group: npm_and_yarn-security-group
...

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

examples/nextjs/package.json

@@ -19,8 +19,8 @@
     "autoprefixer": "10.4.14",
     "eslint": "8.49.0",
     "eslint-config-next": "13.4.19",
-    "next": "13.5.1",
-    "postcss": "8.4.31",
+    "next": "14.1.0",
+    "postcss": "8.4.35",
     "react": "18.2.0",
     "react-dom": "18.2.0",
     "tailwindcss": "3.3.2",