Update dependency copy-webpack-plugin to v9

This MR contains the following updates:

Package	Type	Update	Change
copy-webpack-plugin	dependencies	major	^6.4.1 -> ^9.0.1

MR created with the help of gitlab-org/frontend/renovate-gitlab-bot

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Release Notes

webpack-contrib/copy-webpack-plugin

v9.0.1

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v9.0.0

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v8.1.1

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v8.1.0

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v8.0.0

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v7.0.0

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