chore(package): Update dependency sinon to v7.3.2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
sinon	devDependencies	patch	7.3.1 -> 7.3.2	homepage, source

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Release Notes

sinonjs/sinon

### [`v7.3.2`](https://togithub.com/sinonjs/sinon/blob/master/CHANGELOG.md#​732--2019-04-17) [Compare Source](https://togithub.com/sinonjs/sinon/compare/v7.3.1...v7.3.2) ================== - Update Lolex to bring in fix for [sinonjs/lolex#​232](https://togithub.com/sinonjs/lolex/issues/232) (queueMicrotask warning)

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