test: add timeouts to ITOtelErrorType.java

Author: diegomarquezp

sdk-platform-java/java-showcase/gapic-showcase/src/test/java/com/google/showcase/v1beta1/it/ITOtelErrorType.java

@@ -84,7 +84,10 @@
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Timeout;
+import java.util.concurrent.TimeUnit;
 
+@Timeout(value = 30, unit = TimeUnit.SECONDS)
 class ITOtelErrorType {
   private InMemorySpanExporter spanExporter;
   private OpenTelemetrySdk openTelemetrySdk;