SwifterPM 0.8.12 fixes __MACOSX shadow bundles and resolve output

Bumps the pinned SwifterPM dependency from 0.8.10 to 0.8.12 with two fixes that reach tuist install / tuist generate through the SwiftPM integration path. First, artifact extraction now strips __MACOSX shadow AppleDouble bundles, so packages that ship Finder-zipped binary artifacts (e.g. Plaid’s LinkKit) no longer abort generation with errors about a missing Info.plist inside the shadow xcframework. Second, delegated swift package resolve runs now stream their stdout and stderr, so resolution progress is visible in the terminal instead of appearing stalled while it works.