Update dependency rollup to v2.38.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	2.38.2 -> 2.38.3

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Release Notes

rollup/rollup

### [`v2.38.3`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2383) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.38.2...v2.38.3) _2021-02-01_ ##### Bug Fixes - Prevent an unexpected live-binding when default exporting a synthetic named export ([#​3946](https://togithub.com/rollup/rollup/issues/3946)) ##### Pull Requests - [#​3945](https://togithub.com/rollup/rollup/pull/3945): Upgrade chokidar and fsevents for Apple M1 compatibility ([@​threepointone](https://togithub.com/threepointone)) - [#​3946](https://togithub.com/rollup/rollup/pull/3946): Make sure default exports snapshot synthetic named exports ([@​lukastaegert](https://togithub.com/lukastaegert))

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