Update dependency copy-webpack-plugin to v6.1.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
copy-webpack-plugin	devDependencies	minor	6.0.4 -> 6.1.0

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Release Notes

webpack-contrib/copy-webpack-plugin

### [`v6.1.0`](https://togithub.com/webpack-contrib/copy-webpack-plugin/blob/master/CHANGELOG.md#​610-httpsgithubcomwebpack-contribcopy-webpack-plugincomparev604v610-2020-08-31) [Compare Source](https://togithub.com/webpack-contrib/copy-webpack-plugin/compare/v6.0.4...v6.1.0) ##### Features - added `filter` option ([#​524](https://togithub.com/webpack-contrib/copy-webpack-plugin/issues/524)) ([1496f85](https://togithub.com/webpack-contrib/copy-webpack-plugin/commit/1496f85d2fa5e87dccd0cda92b1343c649f3e5bd)) - added the `copied` flag to asset info ([09b1dc9](https://togithub.com/webpack-contrib/copy-webpack-plugin/commit/09b1dc995e476bb7090ebb2c2cbd4b5ebedeaa79)) - added the `immutable` flag to asset info with hash in name ([#​525](https://togithub.com/webpack-contrib/copy-webpack-plugin/issues/525)) ([a1989d5](https://togithub.com/webpack-contrib/copy-webpack-plugin/commit/a1989d59b8b0a8caf0b826016e20c82a9ac38aa1)) - **webpack@5:** improve stats output for `copied` files ##### [6.0.4](https://togithub.com/webpack-contrib/copy-webpack-plugin/compare/v6.0.3...v6.0.4) (2020-08-29) ##### Bug Fixes - compatibility with webpack@5 ([#​522](https://togithub.com/webpack-contrib/copy-webpack-plugin/issues/522)) ([714af2f](https://togithub.com/webpack-contrib/copy-webpack-plugin/commit/714af2ff72da168ec7456ac9a93ef4f4486be21e)) ##### [6.0.3](https://togithub.com/webpack-contrib/copy-webpack-plugin/compare/v6.0.2...v6.0.3) (2020-06-30) ##### Bug Fixes - do not execute on a child compiler ([42f27c7](https://togithub.com/webpack-contrib/copy-webpack-plugin/commit/42f27c777cc37dc2ce4af399cb2a943e9e62172e)) ##### [6.0.2](https://togithub.com/webpack-contrib/copy-webpack-plugin/compare/v6.0.1...v6.0.2) (2020-06-03) ##### Bug Fixes - security problem - compatibility with `10.13` version of Node.js ##### [6.0.1](https://togithub.com/webpack-contrib/copy-webpack-plugin/compare/v6.0.0...v6.0.1) (2020-05-16) ##### Bug Fixes - concurrency writing assets ([#​484](https://togithub.com/webpack-contrib/copy-webpack-plugin/issues/484)) ([bfc712d](https://togithub.com/webpack-contrib/copy-webpack-plugin/commit/bfc712d77b4ba66caf72341e31a1dd5957bfa36c)) - escaping special characters in the `context` option ([0e62695](https://togithub.com/webpack-contrib/copy-webpack-plugin/commit/0e62695ee32216a133920f2ab5a1282e6a4a038b))

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