chore: disable flaky datastore tests (#1891)

Author: ameter

AmplifyPlugins/DataStore/DataStoreCategoryPlugin.xcodeproj/xcshareddata/xcschemes/AWSDataStoreCategoryPlugin.xcscheme

@@ -86,6 +86,15 @@
                <Test
                   Identifier = "DataStoreHubTests/testDataStoreDispatchesUpdateToHub()">
                </Test>
+               <Test
+                  Identifier = "MutationEventExtensionsTest/testSentModelVersionNewerThanResponseVersion_PendingEventNotReconciled()">
+               </Test>
+               <Test
+                  Identifier = "MutationEventExtensionsTest/testSentModelWithNilVersion_Reconciled()">
+               </Test>
+               <Test
+                  Identifier = "MutationEventExtensionsTest/testSentModelWithNilVersion_SecondPendingEventNotReconciled()">
+               </Test>
                <Test
                   Identifier = "OutgoingMutationQueueTests/testLocalMutationUnsubcsribesFromCloud()">
                </Test>