Update dependency eslint-plugin-testing-library to v4.12.4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint-plugin-testing-library	4.12.3 -> 4.12.4

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Release Notes

testing-library/eslint-plugin-testing-library

### [`v4.12.4`](https://togithub.com/testing-library/eslint-plugin-testing-library/releases/v4.12.4) [Compare Source](https://togithub.com/testing-library/eslint-plugin-testing-library/compare/v4.12.3...v4.12.4) ##### Reverts - "ci: fix node 16 to 16.8" ([#​482](https://togithub.com/testing-library/eslint-plugin-testing-library/issues/482)) ([fb2740c](https://togithub.com/testing-library/eslint-plugin-testing-library/commit/fb2740c76d2f726d9ca08105b52628adff8d9141))

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[elliotcourant]

bors r+

[bors[bot]]

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