Update dependency @testing-library/react to v10.4.8

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
@testing-library/react	devDependencies	patch	10.4.7 -> 10.4.8

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Release Notes

testing-library/react-testing-library

### [`v10.4.8`](https://togithub.com/testing-library/react-testing-library/releases/v10.4.8) [Compare Source](https://togithub.com/testing-library/react-testing-library/compare/v10.4.7...v10.4.8) ##### Bug Fixes - **fireEvent:** Make sure react dispatches focus/blur events ([#​758](https://togithub.com/testing-library/react-testing-library/issues/758)) ([9aac157](https://togithub.com/testing-library/react-testing-library/commit/9aac1570d8bccfdf4584b22196cc23a479b47aff))

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