Bump the npm_and_yarn group across 2 directories with 1 update

Bumps the npm_and_yarn group with 1 update in the / directory: [next](https://github.com/vercel/next.js).
Bumps the npm_and_yarn group with 1 update in the /website directory: [next](https://github.com/vercel/next.js).


Updates `next` from 15.4.7 to 15.4.8
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.4.7...v15.4.8)

Updates `next` from 15.4.7 to 15.4.8
- [Release notes](https://github.com/vercel/next.js/releases)
- [Changelog](https://github.com/vercel/next.js/blob/canary/release.js)
- [Commits](vercel/next.js@v15.4.7...v15.4.8)

---
updated-dependencies:
- dependency-name: next
  dependency-version: 15.4.8
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: next
  dependency-version: 15.4.8
  dependency-type: direct:production
  dependency-group: npm_and_yarn
...

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

Author: dependabot[bot]