updated build-validation.yml

Author: bachuv

.github/workflows/build-validation.yml

@@ -88,7 +88,11 @@ jobs:
         done
         echo "Durable Task Emulator is ready on port 4001"
         # Give additional time for gRPC service to fully initialize after port is open
-        sleep 5
+        echo "Waiting for gRPC service to fully initialize..."
+        sleep 15
+        echo "Verifying emulator container is still healthy..."
+        docker ps | grep durabletask-emulator
+        echo "Emulator initialization complete"
 
     - name: Integration Tests with Gradle
       run: ./gradlew integrationTest || echo "TEST_FAILED=true" >> $GITHUB_ENV