build(deps-dev): bump rollup from 2.27.1 to 2.28.0 (#333)

Bumps [rollup](https://github.com/rollup/rollup) from 2.27.1 to 2.28.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.27.1...v2.28.0)

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