Update dependency webpack to v5.21.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
webpack	5.21.0 -> 5.21.1

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Release Notes

webpack/webpack

### [`v5.21.1`](https://togithub.com/webpack/webpack/releases/v5.21.1) [Compare Source](https://togithub.com/webpack/webpack/compare/v5.21.0...v5.21.1) ### Bugfixes - fix a crash when using colors in stats

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