Prevent error if Actuator not present

src/main/java/org/springframework/cloud/client/CommonsClientAutoConfiguration.java

@@ -1,5 +1,7 @@
 package org.springframework.cloud.client;
 
+import org.springframework.boot.actuate.health.HealthIndicator;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.cloud.client.discovery.DiscoveryHealthIndicator;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -9,6 +11,7 @@ import org.springframework.core.annotation.Order;
  * @author Spencer Gibb
  */
 @Configuration
+@ConditionalOnClass(HealthIndicator.class)
 @Order(0)
 public class CommonsClientAutoConfiguration {