Bump loader-utils and nuxt

Bumps [loader-utils](https://github.com/webpack/loader-utils) to 1.4.2 and updates ancestor dependency [nuxt](https://github.com/nuxt/framework). These dependencies need to be updated together.


Updates `loader-utils` from 1.2.3 to 1.4.2
- [Release notes](https://github.com/webpack/loader-utils/releases)
- [Changelog](https://github.com/webpack/loader-utils/blob/v1.4.2/CHANGELOG.md)
- [Commits](webpack/loader-utils@v1.2.3...v1.4.2)

Updates `nuxt` from 2.8.1 to 2.15.8
- [Release notes](https://github.com/nuxt/framework/releases)
- [Commits](https://github.com/nuxt/framework/commits)

---
updated-dependencies:
- dependency-name: loader-utils
  dependency-type: indirect
- dependency-name: nuxt
  dependency-type: direct:production
...

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

Author: dependabot[bot]