Update dependency webpack-cli to v4.1.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
webpack-cli	devDependencies	minor	4.0.0 -> 4.1.0

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Release Notes

webpack/webpack-cli

### [`v4.1.0`](https://togithub.com/webpack/webpack-cli/compare/webpack-cli@4.0.0...webpack-cli@4.1.0) [Compare Source](https://togithub.com/webpack/webpack-cli/compare/webpack-cli@4.0.0...webpack-cli@4.1.0)

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