chore(deps): update dependency react-testing-library to v6.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	References
react-testing-library	devDependencies	patch	6.0.2 -> 6.0.3	source

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Release Notes

kentcdodds/react-testing-library

### [`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))

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