chore(deps): update dependency rollup to v2.52.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	2.52.3 -> 2.52.4

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Release Notes

rollup/rollup

### [`v2.52.4`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2524) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.52.3...v2.52.4) *2021-06-30* ##### Bug Fixes - Fix an error when external namespaces are reexported across several files ([#​4159](https://togithub.com/rollup/rollup/issues/4159)) ##### Pull Requests - [#​4159](https://togithub.com/rollup/rollup/pull/4159): Properly handle double reexports from external namespaces ([@​lukastaegert](https://togithub.com/lukastaegert))

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