chore(deps-dev): bump rollup from 1.20.0 to 1.20.2

Bumps [rollup](https://github.com/rollup/rollup) from 1.20.0 to 1.20.2.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v1.20.0...v1.20.2)

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