Basics: add missing `@Sendable` to `withTemporaryDirectory` (#5872)
Basics: add missing `@Sendable` to `withTemporaryDirectory` (#5872)

Added `@Sendable` attribute to the `body` argument of `withTemporaryDirectory`.
apple/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager