chore(deps): update dependency copy-webpack-plugin to v5.1.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
copy-webpack-plugin	devDependencies	patch	5.1.0 -> 5.1.1

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Release Notes

webpack-contrib/copy-webpack-plugin

### [`v5.1.1`](https://togithub.com/webpack-contrib/copy-webpack-plugin/blob/master/CHANGELOG.md#​511httpsgithubcomwebpack-contribcopy-webpack-plugincomparev510v511-2019-12-12) [Compare Source](https://togithub.com/webpack-contrib/copy-webpack-plugin/compare/v5.1.0...v5.1.1)

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