Update dependency peripheryapp/periphery to v2.20.0

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
peripheryapp/periphery	minor	2.19.0 -> 2.20.0

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Release Notes

peripheryapp/periphery (peripheryapp/periphery)

### [`v2.20.0`](https://togithub.com/peripheryapp/periphery/blob/HEAD/CHANGELOG.md#2200-2024-05-29) [Compare Source](https://togithub.com/peripheryapp/periphery/compare/2.19.0...2.20.0) ##### Breaking - None. ##### Enhancements - Added GitHub Actions output formatter. ##### Bug Fixes - Disable unused import analysis for files retained with `--retain-files`. - Fix handling of Xcode project paths containing spaces. - Fix bug causing non-deterministic results for structs with implicit initializers.

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Configuration

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