Xcode Build for testing for iOS v3.3.8

[system]

What’s Changed

• [ACI-4171] Update step interface by @Badlazzor in https://github.com/bitrise-steplib/steps-xcode-build-for-test/pull/76

Full Changelog: Comparing 3.3.7...3.3.8 · bitrise-steplib/steps-xcode-build-for-test · GitHub

Release 3.3.8 · bitrise-steplib/steps-xcode-build-for-test