Setup Danger-Swift

[uhooi]

References

• https://github.com/danger/swift
• https://speakerdeck.com/417_72ki/ci-with-danger-swift
• https://github.com/417-72KI/DangerSwift-iOSSample
• https://github.com/marketplace/actions/github-action-for-danger-swift-swiftlint
• https://uhooi.medium.com/love-swift-59-56a21664fce7

[github-actions[bot]]

👋 Thanks for reporting! Please PR :)

[uhooi]

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