Display progress for `build` action

[maximkrouk]

No progress indication makes waiting for job completion a bit frustrating, see https://github.com/capturecontext/swift-equated/actions/runs/21633191135/job/62351182033

Current output example:

Running xcodebuild-test
  Workspace: .swiftpm/xcode/package.xcworkspace
  Scheme: swift-equated
  Config: Debug
  Platform: iOS
  DerivedData: ~/.derivedData

← NO OUTPUT HERE UNTIL THE STEP IS FINISHED

----- xcbeautify -----
Version: 3.1.4
----------------------

Note

Moved from CaptureContext/swift-declarative-configuration#10