build(deps-dev): bump rollup from 2.3.3 to 2.3.4
Bumps [rollup](https://github.com/rollup/rollup) from 2.3.3 to 2.3.4.
- [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/v2.3.3...v2.3.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>