Update dependency @testing-library/react to v9.3.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@testing-library/react	devDependencies	patch	9.3.0 -> 9.3.1

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Release Notes

testing-library/react-testing-library

### [`v9.3.1`](https://togithub.com/testing-library/react-testing-library/releases/v9.3.1) [Compare Source](https://togithub.com/testing-library/react-testing-library/compare/v9.3.0...v9.3.1) ##### Bug Fixes - manually flush microtasks in afterEach ([#​514](https://togithub.com/testing-library/react-testing-library/issues/514)) ([c48b501](https://togithub.com/testing-library/react-testing-library/commit/c48b501bf683faae6fcf9cadb7ee96fc0da319ba))

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[jaredlockhart]

bors r+

[bors[bot]]

:-1: Rejected by too few approved reviews

[mythmon]

bors r= @jaredkerim

[mythmon]

bors merge

[mythmon]

Lets try this once more.

bors merge

[bors[bot]]

Build succeeded

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