Fixed __MACOSX shadow bundles and improved SwiftPM resolve output

Updated SwifterPM to 0.8.12, which fixes two issues in the SwiftPM integration. Finder-zipped binary artifacts, such as Plaid LinkKit, no longer leave __MACOSX shadow bundles in the extracted cache, which prevents generation failures from missing Info.plist files. SwiftPM resolve output is now streamed through so progress is visible instead of appearing stalled.