Update dependency react-testing-library to v6 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
react-testing-library	devDependencies	major	^5.1.1 -> ^6.0.0	source

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Release Notes

kentcdodds/react-testing-library

### [`v6.1.2`](https://togithub.com/kentcdodds/react-testing-library/releases/v6.1.2) [Compare Source](https://togithub.com/kentcdodds/react-testing-library/compare/v6.1.1...v6.1.2) ##### Bug Fixes - **act:** ensure that the result is returned from our wrapper ([#​346](https://togithub.com/kentcdodds/react-testing-library/issues/346)) ([021ef9d](https://togithub.com/kentcdodds/react-testing-library/commit/021ef9d)), closes [#​345](https://togithub.com/kentcdodds/react-testing-library/issues/345) [#​347](https://togithub.com/kentcdodds/react-testing-library/issues/347) ### [`v6.1.1`](https://togithub.com/kentcdodds/react-testing-library/releases/v6.1.1) [Compare Source](https://togithub.com/kentcdodds/react-testing-library/compare/v6.1.0...v6.1.1) ##### Bug Fixes - **act:** wait until react-dom-16.9.0 is released ([#​344](https://togithub.com/kentcdodds/react-testing-library/issues/344)) ([180179e](https://togithub.com/kentcdodds/react-testing-library/commit/180179e)) ### [`v6.1.0`](https://togithub.com/kentcdodds/react-testing-library/releases/v6.1.0) [Compare Source](https://togithub.com/kentcdodds/react-testing-library/compare/v6.0.4...v6.1.0) ##### Features - **act:** Support async act 🎉 ([#​343](https://togithub.com/kentcdodds/react-testing-library/issues/343)) ([5a88da2](https://togithub.com/kentcdodds/react-testing-library/commit/5a88da2)), closes [#​281](https://togithub.com/kentcdodds/react-testing-library/issues/281) ### [`v6.0.4`](https://togithub.com/kentcdodds/react-testing-library/releases/v6.0.4) [Compare Source](https://togithub.com/kentcdodds/react-testing-library/compare/v6.0.3...v6.0.4) ##### Bug Fixes - **act:** add try/catch around react-dom/test-utils require ([#​340](https://togithub.com/kentcdodds/react-testing-library/issues/340)) ([89299e9](https://togithub.com/kentcdodds/react-testing-library/commit/89299e9)), closes [#​315](https://togithub.com/kentcdodds/react-testing-library/issues/315) ### [`v6.0.3`](https://togithub.com/kentcdodds/react-testing-library/releases/v6.0.3) [Compare Source](https://togithub.com/kentcdodds/react-testing-library/compare/v6.0.2...v6.0.3) ##### Bug Fixes - **deps:** upgrade all dependencies ([a33ccf8](https://togithub.com/kentcdodds/react-testing-library/commit/a33ccf8)) ### [`v6.0.2`](https://togithub.com/kentcdodds/react-testing-library/releases/v6.0.2) [Compare Source](https://togithub.com/kentcdodds/react-testing-library/compare/v6.0.1...v6.0.2) ##### Bug Fixes - **TS:** update Typings ([#​331](https://togithub.com/kentcdodds/react-testing-library/issues/331)) ([aed35f4](https://togithub.com/kentcdodds/react-testing-library/commit/aed35f4)) ### [`v6.0.1`](https://togithub.com/kentcdodds/react-testing-library/releases/v6.0.1) [Compare Source](https://togithub.com/kentcdodds/react-testing-library/compare/v6.0.0...v6.0.1) ##### Bug Fixes - reorder cleanupAtContainer code ([#​327](https://togithub.com/kentcdodds/react-testing-library/issues/327)) ([ca313f2](https://togithub.com/kentcdodds/react-testing-library/commit/ca313f2)) ### [`v6.0.0`](https://togithub.com/kentcdodds/react-testing-library/releases/v6.0.0) [Compare Source](https://togithub.com/kentcdodds/react-testing-library/compare/v5.9.0...v6.0.0) ##### Bug Fixes - move testHook to its own package ([#​307](https://togithub.com/kentcdodds/react-testing-library/issues/307)) ([12d934a](https://togithub.com/kentcdodds/react-testing-library/commit/12d934a)), closes [#​302](https://togithub.com/kentcdodds/react-testing-library/issues/302) ##### BREAKING CHANGES - move testHook to another library. Use instead

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