chore(deps): update dependency rollup to v2.55.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	2.53.3 -> 2.55.1

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Release Notes

rollup/rollup

### [`v2.55.1`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2551) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.55.0...v2.55.1) *2021-07-29* ##### Bug Fixes - Improve CLI warning message for unused external imports ([#​4194](https://togithub.com/rollup/rollup/issues/4194)) ##### Pull Requests - [#​4194](https://togithub.com/rollup/rollup/pull/4194): Align batch warning for UNUSED_EXTERNAL_IMPORT to individual warning ([@​benmccann](https://togithub.com/benmccann)) ### [`v2.55.0`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2550) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.54.0...v2.55.0) *2021-07-28* ##### Features - Support default export live-bindings when generating ESM output ([#​4182](https://togithub.com/rollup/rollup/issues/4182)) ##### Bug Fixes - Always write `["default"]` as computed property when used as named export ([#​4182](https://togithub.com/rollup/rollup/issues/4182)) - Do not mask default export TDZ errors ([#​4182](https://togithub.com/rollup/rollup/issues/4182)) ##### Pull Requests - [#​4182](https://togithub.com/rollup/rollup/pull/4182): Use mutable bindings for default exports ([@​lukastaegert](https://togithub.com/lukastaegert)) ### [`v2.54.0`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2540) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.53.3...v2.54.0) *2021-07-25* ##### Features - Extend UMD import.meta.url polyfill to support web workers ([#​4186](https://togithub.com/rollup/rollup/issues/4186)) ##### Bug Fixes - Resolve an issue where certain uses of classes could lead to an infinite recursion ([#​4189](https://togithub.com/rollup/rollup/issues/4189)) ##### Pull Requests - [#​4186](https://togithub.com/rollup/rollup/pull/4186): Fix UMD import.meta.url inside web workers ([@​ceifa](https://togithub.com/ceifa)) - [#​4188](https://togithub.com/rollup/rollup/pull/4188): Fix typo in renderHelpers.ts ([@​eltociear](https://togithub.com/eltociear)) - [#​4189](https://togithub.com/rollup/rollup/pull/4189): Move long path recursion prevention to MemberExpression ([@​lukastaegert](https://togithub.com/lukastaegert)) - [#​4190](https://togithub.com/rollup/rollup/pull/4190): Stop recommending node-builtins ([@​curran](https://togithub.com/curran))

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