Update dependency webpack to v5.20.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
webpack	5.19.0 -> 5.20.0

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Release Notes

webpack/webpack

### [`v5.20.0`](https://togithub.com/webpack/webpack/releases/v5.20.0) [Compare Source](https://togithub.com/webpack/webpack/compare/v5.19.0...v5.20.0) ### Features - add `experiments.lazyCompilation.imports` to disable lazy compilation of `import()`s - add `experiments.lazyCompilation.test` to allow custom selection of modules that should be lazy compiled - When using `profile: true` resp. `--profile` webpack will now print a summary of expensive modules or loaders ### Bugfixes - fix that `experiments.lazyCompilation.client` now works as intended - fix a bug which causes runtime requirements to be missing e. g. `__webpack_require__ is not defined` ### Developer Experience - expose `EntryObject` type in typings - remove `pkg-dir` dependency

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