Fix Xcode 11 build issues with WorkflowTesting

Author: AquaGeek

WorkflowTesting.podspec

@@ -23,6 +23,8 @@ Pod::Spec.new do |s|
   s.test_spec 'Tests' do |test_spec|
     test_spec.source_files = 'swift/WorkflowTesting/Tests/**/*.swift'
     test_spec.framework = 'XCTest'
+    test_spec.library = 'swiftDispatch'
+    test_spec.library = 'swiftFoundation'
   end
 
 end