Update build-validation.yml and build.gradle to enforce test failure handling

Author: YunchuWang

.github/workflows/build-validation.yml

@@ -56,6 +56,7 @@ jobs:
 
     - name: Integration Tests with Gradle
       run: ./gradlew integrationTest
+      continue-on-error: false
 
     - name: Archive test report
       uses: actions/upload-artifact@v2

client/build.gradle

@@ -94,6 +94,8 @@ task integrationTest(type: Test) {
     dependsOn build
     shouldRunAfter test
     testLogging.showStandardStreams = true
+
+    ignoreFailures = false
 }
 
 publishing {