fix(deps): update rust crate walkdir to 2.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
walkdir	dependencies	minor	2.3.3 -> 2.4.0

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Release Notes

BurntSushi/walkdir (walkdir)

### [`v2.4.0`](https://togithub.com/BurntSushi/walkdir/compare/2.3.3...2.4.0) [Compare Source](https://togithub.com/BurntSushi/walkdir/compare/2.3.3...2.4.0)

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