chore(deps): update dependency through2 to v4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
through2	devDependencies	major	3.0.2 -> 4.0.1

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Release Notes

rvagg/through2

### [`v4.0.1`](https://togithub.com/rvagg/through2/compare/v4.0.0...v4.0.1) [Compare Source](https://togithub.com/rvagg/through2/compare/v4.0.0...v4.0.1) ### [`v4.0.0`](https://togithub.com/rvagg/through2/compare/v3.0.2...v4.0.0) [Compare Source](https://togithub.com/rvagg/through2/compare/v3.0.2...v4.0.0)

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