build: update dependency @testing-library/react to v12

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@testing-library/react	11.2.7 -> 12.0.0

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Release Notes

testing-library/react-testing-library

v12.0.0

Compare Source

Bug Fixes

• Bump testing-library/dom to v8 alpha (#​923) (770246e)
• Update @​testing-library/dom (#​931) (05c7421)

Features

• Bump @​testing-library/dom (6e6bf85)
• Drop support for node 10 (#​930) (42dad78)

BREAKING CHANGES

• Bump @testing-library/dom to 8.0.0. Please check out the @testing-library/dom@8.0.0 release page for a detailed list of breaking changes.
• node 10 is no longer supported. It reached its end-of-life on 30.04.2021.

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