Bump nth-check and rollup-plugin-styles

Bumps [nth-check](https://github.com/fb55/nth-check) and [rollup-plugin-styles](https://github.com/Anidetrix/rollup-plugin-styles). These dependencies needed to be updated together.

Updates `nth-check` from 1.0.2 to 2.1.1
- [Release notes](https://github.com/fb55/nth-check/releases)
- [Commits](https://github.com/fb55/nth-check/compare/v1.0.2...v2.1.1)

Updates `rollup-plugin-styles` from 3.14.1 to 4.0.0
- [Release notes](https://github.com/Anidetrix/rollup-plugin-styles/releases)
- [Changelog](https://github.com/Anidetrix/rollup-plugin-styles/blob/main/CHANGELOG.md)
- [Commits](https://github.com/Anidetrix/rollup-plugin-styles/compare/v3.14.1...v4.0.0

)

---
updated-dependencies:
- dependency-name: nth-check
  dependency-type: indirect
- dependency-name: rollup-plugin-styles
  dependency-type: direct:development
...

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