Update dependency rollup to v2.53.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	2.52.8 -> 2.53.0

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Release Notes

rollup/rollup

### [`v2.53.0`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2530) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.52.8...v2.53.0) *2021-07-09* ##### Features - Add `maxParallelFileReads` option to limit read operations with a default of 20 ([#​4170](https://togithub.com/rollup/rollup/issues/4170)) ##### Pull Requests - [#​4170](https://togithub.com/rollup/rollup/pull/4170): Limit parallel file reads to prevent "EMFILE: too many open files" error ([@​schummar](https://togithub.com/schummar))

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