Increased timeouts and retries for instrumentation tests

Summary:
Tests fail quite often but retries seem to help.
Closes https://github.com/facebook/react-native/pull/7537

Differential Revision: D3295833

fbshipit-source-id: e74be5d62b7fb9c1859477e51bf18fe3d1d25ce4

circle.yml

@@ -76,7 +76,7 @@ test:
     - ./gradlew :ReactAndroid:assembleDebugAndroidTest
 
     # Android e2e test
-    - node ./scripts/run-ci-e2e-tests.js --android --js --retries 3
+    - node ./scripts/run-ci-e2e-tests.js --android --js --retries 5
 
     # testing docs generation is not broken
     - cd website && node ./server/generate.js

scripts/run-ci-android-instrumentation-tests.js

@@ -42,7 +42,7 @@ let exitCode = 0;
 testClasses.forEach((testClass) => {
   if (tryExecNTimes(
     () => {
-      exec('sleep 5s');
+      exec('sleep 10s');
       return exec(`./scripts/run-android-instrumentation-tests.sh ${argv.package} ${testClass}`).code;
     },
     numberOfRetries)) {