RN: 5s Delay in `ReactAppInstrumentationTestCase`

Summary:
Tests like `CatalystSubviewsClippingTestCase` are intermittently failing due to registered callable modules not yet being registered.

Increasing the timeout to wait for the bundle execution to mitigate these intermittent failures.

Changelog:
[Internal]

Reviewed By: mdvacca

Differential Revision: D29835227

fbshipit-source-id: c9fe03202ad4028d3785216d50c6c173a56c6d84

ReactAndroid/src/androidTest/java/com/facebook/react/testing/ReactAppInstrumentationTestCase.java

@@ -37,7 +37,7 @@ public abstract class ReactAppInstrumentationTestCase
     final ReactAppTestActivity activity = getActivity();
     activity.loadApp(
         getReactApplicationKeyUnderTest(), createReactInstanceSpecForTest(), getEnableDevSupport());
-    waitForBridgeAndUIIdle();
+    waitForBridgeAndUIIdle(5000);
   }
 
   @Override