chore(deps): update dependency pbxproj to v4

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pbxproj	==3.5.0 -> ==4.2.1

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Release Notes

kronenthaler/mod-pbxproj (pbxproj)

### [`v4.2.1`](https://togithub.com/kronenthaler/mod-pbxproj/compare/4.2.0...4.2.1) [Compare Source](https://togithub.com/kronenthaler/mod-pbxproj/compare/4.2.0...4.2.1) ### [`v4.2.0`](https://togithub.com/kronenthaler/mod-pbxproj/compare/4.1.0...4.2.0) [Compare Source](https://togithub.com/kronenthaler/mod-pbxproj/compare/4.1.0...4.2.0) ### [`v4.1.0`](https://togithub.com/kronenthaler/mod-pbxproj/compare/4.0.0...4.1.0) [Compare Source](https://togithub.com/kronenthaler/mod-pbxproj/compare/4.0.0...4.1.0) ### [`v4.0.0`](https://togithub.com/kronenthaler/mod-pbxproj/compare/3.5.0...4.0.0) [Compare Source](https://togithub.com/kronenthaler/mod-pbxproj/compare/3.5.0...4.0.0)

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