fix(deps): update dependency cssnano to v5.1.14

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
cssnano	5.1.13 -> 5.1.14

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Release Notes

cssnano/cssnano

### [`v5.1.14`](https://togithub.com/cssnano/cssnano/releases/tag/cssnano%405.1.14): v5.1.14 [Compare Source](https://togithub.com/cssnano/cssnano/compare/cssnano@5.1.13...cssnano@5.1.14) #### Bug Fixes - fix: update autoprefixer and browserslist - fix(postcss-reduce-initial): improve initial properties data

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