Update dependency rollup to v2.56.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	2.55.1 -> 2.56.3

---

Release Notes

rollup/rollup

### [`v2.56.3`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2563) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.56.2...v2.56.3) *2021-08-23* ##### Bug Fixes - Make sure moduleInfo contains complete information about imported ids in the moduleParsed hook ([#​4208](https://togithub.com/rollup/rollup/issues/4208)) ##### Pull Requests - [#​4208](https://togithub.com/rollup/rollup/pull/4208): `ModuleInfo.importedIds` will return null if `resolvedIds[source]` is undefined ([@​FoxDaxian](https://togithub.com/FoxDaxian) and [@​lukastaegert](https://togithub.com/lukastaegert)) ### [`v2.56.2`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2562) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.56.1...v2.56.2) *2021-08-10* ##### Bug Fixes - Check if after simplification, an object pattern would become an expression statement or arrow function return value ([#​4204](https://togithub.com/rollup/rollup/issues/4204)) ##### Pull Requests - [#​4204](https://togithub.com/rollup/rollup/pull/4204): Do not create invalid code when simplifying object pattern assignments ([@​lukastaegert](https://togithub.com/lukastaegert)) ### [`v2.56.1`](https://togithub.com/rollup/rollup/compare/v2.56.0...v2.56.1) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.56.0...v2.56.1) ### [`v2.56.0`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2560) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.55.1...v2.56.0) *2021-08-05* ##### Features - Create more efficient code for SystemJS exports ([#​4199](https://togithub.com/rollup/rollup/issues/4199)) - Extend `maxParallelFileReads` option to also throttle plugin load hooks ([#​4200](https://togithub.com/rollup/rollup/issues/4200)) ##### Bug Fixes - Return correct value for postfix update expressions of exported variables ([#​4194](https://togithub.com/rollup/rollup/issues/4194)) ##### Pull Requests - [#​4199](https://togithub.com/rollup/rollup/pull/4199): Refine SystemJS export rendering ([@​lukastaegert](https://togithub.com/lukastaegert)) - [#​4200](https://togithub.com/rollup/rollup/pull/4200): Restrict parallel execution of load hook ([@​schummar](https://togithub.com/schummar))

---

Configuration

📅 Schedule: "on the first day of the month" (UTC).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box.

---

This PR has been generated by WhiteSource Renovate. View repository job log here.