Update dependency clean-webpack-plugin to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
clean-webpack-plugin	1.0.1 -> 4.0.0

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Release Notes

johnagan/clean-webpack-plugin

v4.0.0

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Changes

• Added support for NodeJS 14
• Added support for webpack 5

Breaking changes:

• Dropped support for NodeJS 8
• Dropped support for webpack 3

v3.0.0

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• Removed Node 6 support
• Removed webpack 2 support
• cleanOnceBeforeBuildPatterns use emit hook instead of compile
• Do not clean files if webpack errors are present during initial build
• Replaced default export with named export CleanWebpackPlugin

// es modules import { CleanWebpackPlugin } from 'clean-webpack-plugin'; // common js const { CleanWebpackPlugin } = require('clean-webpack-plugin');

v2.0.2

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v2.0.1

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v2.0.0

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Relavant:

• README.md
• Additional v2 information

Changes:

• No configuration is needed for standard usage (cleans webpack's output.path)
• By default during webpack's watch mode, only files created by webpack are removed
• Because del is used, globbing is supported
• Plugin is tested directly via webpack
• All supported versions are tested
• Windows is tested via appveyor (no mocked tests)
• Complete build system including prepublish hooks and git prepush/commit hooks
• Written with Typescript

Additional notes:

• Moved to CircleCI because Travis CI was sold and looks to now be in maintenance mode.
• Replaced Coveralls with codecov because automatic build merging works. This is important because of windows/different webpack version testing

Closes Issues: #​53 #​55 #​67 #​73 #​80 #​85 #​86 #​89 #​91 #​92 #​93 #​98
Closes PRs: #​39 #​74

Massive props to @​chrisblossom for working on this and pushing it through.

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[renovate]

Renovate Ignore Notification

As this PR has been closed unmerged, Renovate will ignore this upgrade and you will not receive PRs for any future 4.x releases. However, if you upgrade to 4.x manually then Renovate will then reenable updates for minor and patch updates automatically.

If this PR was closed by mistake or you changed your mind, you can simply rename this PR and you will soon get a fresh replacement PR opened.