chore(deps): update dependency selenium.webdriver to v4.21.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
Selenium.WebDriver (source)	4.20.0 -> 4.21.0

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Release Notes

SeleniumHQ/selenium (Selenium.WebDriver)

### [`v4.21.0`](https://togithub.com/SeleniumHQ/selenium/compare/866c76ca804c82795fd86a969bc5ed402397142c...79ed462ef4f0af15fa7cb6c163898721c87d97a3)

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Configuration

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