chore(deps): update dependency rollup to v2.52.7

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
rollup (source)	2.52.6 -> 2.52.7

---

Release Notes

rollup/rollup

### [`v2.52.7`](https://togithub.com/rollup/rollup/blob/master/CHANGELOG.md#​2527) [Compare Source](https://togithub.com/rollup/rollup/compare/v2.52.6...v2.52.7) *2021-07-02* ##### Bug Fixes - Fix an issue where reassignments where not tracked through async function returns ([#​4163](https://togithub.com/rollup/rollup/issues/4163)) ##### Pull Requests - [#​4163](https://togithub.com/rollup/rollup/pull/4163): Deoptimize return values of async functions ([@​lukastaegert](https://togithub.com/lukastaegert))

---

Configuration

📅 Schedule: At any time (no schedule defined).

🚦 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.