Added TracingProperties bean

spring-cloud-gateway-server/src/test/java/org/springframework/cloud/gateway/config/GatewayMetricsAutoConfigurationTests.java

@@ -29,6 +29,7 @@ import org.mockito.Mockito;
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringBootConfiguration;
+import org.springframework.boot.actuate.autoconfigure.tracing.TracingProperties;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.test.autoconfigure.actuate.observability.AutoConfigureObservability;
 import org.springframework.boot.test.context.SpringBootTest;
@@ -178,6 +179,11 @@ public class GatewayMetricsAutoConfigurationTests {
 			return Mockito.mock(Propagator.class);
 		}
 
+		@Bean
+		TracingProperties tracingProperties() {
+			return new TracingProperties();
+		}
+
 	}
 
 	@SpringBootConfiguration