[Snyk] Security upgrade copy-webpack-plugin from 6.4.1 to 9.0.1

[olaferlandsen]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - package.json #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **698/1000**
**Why?** Proof of Concept exploit, Recently disclosed, Has a fix available, CVSS 6.1 | Cross-site Scripting (XSS)
[SNYK-JS-SERIALIZEJAVASCRIPT-6147607](https://snyk.io/vuln/SNYK-JS-SERIALIZEJAVASCRIPT-6147607) | Yes | Proof of Concept (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: copy-webpack-plugin

The new version differs by 29 commits.

• 797a006 chore(release): update `serialize-javascript`
• f233c55 chore(deps): serialize-javascript and deps updated (#613)
• 966d723 chore(deps): update (#610)
• 2abdddf chore: fix typo (#609)
• d041d85 chore(release): 9.0.0
• beff64e refactor: nodejs v10 dropped (#606)
• 3a1139e docs: fix unintended cyrillics in README.md (#604)
• 8857968 chore(release): 8.1.1
• d8fa32a fix: `stage` for processing assets (#600) (#601)
• a571f07 chore(release): 8.1.0
• 82b10e3 chore(deps): update (#598)
• a8ace71 docs: update (#597)
• dde71f0 feat: added the `transformAll` option (#596)
• 4ca7f80 docs: fix broken link to #globoptions (#595)
• 01fa91b docs: fix typo
• 1787d2d chore(release): 8.0.0
• 83601dc refactor: code (#593)
• 9e12a33 refactor: code (#592)
• d68a8eb chore(deps): update (#591)
• ea610bc feat: added `priority` option (#590)
• a9b06a6 docs(readme): add example to skip minimizing source files (#588)
• f2c1bc8 refactor: template strings in `to` option (#589)
• 8d5ab9a chore: updated deps (#587)
• f5e661b test: issue 496 (#586)

See the full diff

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