Update dependency webpack-dev-server to v4.9.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
webpack-dev-server	4.9.0 -> 4.9.1

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Release Notes

webpack/webpack-dev-server

### [`v4.9.1`](https://togithub.com/webpack/webpack-dev-server/blob/HEAD/CHANGELOG.md#​491-httpsgithubcomwebpackwebpack-dev-servercomparev490v491-2022-05-31) [Compare Source](https://togithub.com/webpack/webpack-dev-server/compare/v4.9.0...v4.9.1)

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Configuration

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