chore(deps): update dependency imagemin-webpack to ^5.1.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
imagemin-webpack	dependencies	patch	^5.1.0 -> ^5.1.1

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Release Notes

itgalaxy/imagemin-webpack

### [`v5.1.1`](https://togithub.com/itgalaxy/imagemin-webpack/releases/v5.1.1) [Compare Source](https://togithub.com/itgalaxy/imagemin-webpack/compare/v5.1.0...v5.1.1) ##### Chore - update dependencies - support webpack@5

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