Bump rollup-plugin-sass from 1.2.7 to 1.2.8

Bumps [rollup-plugin-sass](https://github.com/differui/rollup-plugin-sass) from 1.2.7 to 1.2.8.
- [Release notes](https://github.com/differui/rollup-plugin-sass/releases)
- [Changelog](https://github.com/differui/rollup-plugin-sass/blob/master/CHANGELOG.md)
- [Commits](elycruz/rollup-plugin-sass@1.2.7...1.2.8)

---
updated-dependencies:
- dependency-name: rollup-plugin-sass
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]