chore(deps): update dependency rollup to v2.70.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	2.70.1 -> 2.70.2

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Release Notes

rollup/rollup

### [`v2.70.2`](https://togithub.com/rollup/rollup/blob/HEAD/CHANGELOG.md#​2702) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.70.1...v2.70.2) *2022-04-15* ##### Bug Fixes - Do not enforce undefined return values in TypeScript types ([#​4463](https://togithub.com/rollup/rollup/issues/4463)) ##### Pull Requests - [#​4463](https://togithub.com/rollup/rollup/pull/4463): use void for options hook instead of undefined ([@​ycmjason](https://togithub.com/ycmjason))

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