SwiftPM integration fixes Finder-zipped artifacts and shows resolve progress

The pinned SwifterPM dependency has been updated to 0.8.12, fixing two issues in the SwiftPM integration. First, it strips __MACOSX shadow bundles from extracted archives, which prevents generation failures with Finder-zipped binary artifacts such as Plaid’s LinkKit. Second, it streams stdout and stderr from delegated swift package resolve runs, so resolution progress is visible instead of appearing stalled.