Upgrade: [dependabot] - bump nhsuk-frontend from 9.6.4 to 10.2.2

Bumps [nhsuk-frontend](https://github.com/nhsuk/nhsuk-frontend) from 9.6.4 to 10.2.2.
- [Release notes](https://github.com/nhsuk/nhsuk-frontend/releases)
- [Changelog](https://github.com/nhsuk/nhsuk-frontend/blob/main/CHANGELOG.md)
- [Commits](nhsuk/nhsuk-frontend@v9.6.4...v10.2.2)

---
updated-dependencies:
- dependency-name: nhsuk-frontend
  dependency-version: 10.2.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]