Update dependency rollup to v2.36.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	2.35.1 -> 2.36.0

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Release Notes

rollup/rollup

### [`v2.36.0`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2360) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.35.1...v2.36.0) _2021-01-05_ ##### Features - Support partial tree-shaking of chained assignments and unused assignment targets ([#​3919](https://togithub.com/rollup/rollup/issues/3919)) ##### Pull Requests - [#​3919](https://togithub.com/rollup/rollup/pull/3919): Treeshake chained assignment expressions ([@​lukastaegert](https://togithub.com/lukastaegert))

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