Fix tests for `swift-api-digester` integration (#5895)
Fix tests for `swift-api-digester` integration (#5895)

Looks like these tests are disabled by default, so some failures snuck in.
apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager