Update dependency depcheck to v0.9.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
depcheck	dependencies	minor	0.8.4 -> 0.9.0

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Release Notes

depcheck/depcheck

### [`v0.9.0`](https://togithub.com/depcheck/depcheck/compare/0.8.4...0.9.0) [Compare Source](https://togithub.com/depcheck/depcheck/compare/0.8.4...0.9.0)

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