更新jackson 版本到 2.9.10.4

Author: lichengsheng

mq-client/mq-core/pom.xml

@@ -28,7 +28,7 @@
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
 			<artifactId>jackson-databind</artifactId>
-			<version>2.8.7</version>
+			<version>2.9.10.4</version>
 		</dependency>
 		<dependency>
 			<groupId>com.squareup.okhttp3</groupId>