test(auth): turn off parallelizable and tsan in integration tests (#3292)

Author: atierian

AmplifyPlugins/Auth/Tests/AuthHostApp/AuthHostApp.xcodeproj/xcshareddata/xcschemes/AuthHostApp.xcscheme

@@ -50,8 +50,7 @@
             </BuildableReference>
          </TestableReference>
          <TestableReference
-            skipped = "NO"
-            parallelizable = "YES">
+            skipped = "NO">
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "97914B2629550988002000EA"

AmplifyPlugins/Auth/Tests/AuthHostApp/AuthHostApp.xcodeproj/xcshareddata/xcschemes/AuthIntegrationTests.xcscheme

@@ -11,7 +11,6 @@
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
       shouldUseLaunchSchemeArgsEnv = "YES"
-      enableThreadSanitizer = "YES"
       codeCoverageEnabled = "YES">
       <CodeCoverageTargets>
          <BuildableReference