chore(deps): update dependency eslint-config-react-app to v6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint-config-react-app	^5.2.1 -> ^6.0.0

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Release Notes

facebook/create-react-app

### [`v6.0.0`](https://togithub.com/facebook/create-react-app/compare/eslint-config-react-app@5.2.1...eslint-config-react-app@6.0.0) [Compare Source](https://togithub.com/facebook/create-react-app/compare/eslint-config-react-app@5.2.1...eslint-config-react-app@6.0.0)

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