[DOCS] Update Chinese docs dependency version from 4.3.0/4.9.1 to 5.5.0 (#10358)

- docs/cn/Example_Simple_cn.md: update version tag and Gradle dependency 4.3.0 -> 5.5.0
- docs/cn/RocketMQ_Example.md: update Maven version tag 4.9.1 -> 5.5.0 and Gradle dependency 4.3.0 -> 5.5.0
- Align with the English version (docs/en/Example_Simple.md) which was already updated to 5.5.0

Co-authored-by: H145608 <1404499274@qq.com>

Author: H145608

docs/cn/Example_Simple_cn.md

@@ -9,12 +9,12 @@ maven:
 <dependency>
   <groupId>org.apache.rocketmq</groupId>
   <artifactId>rocketmq-client</artifactId>
-  <version>4.3.0</version>
+  <version>5.5.0</version>
 </dependency>
 ```
 gradle: 
 ``` java 
-compile 'org.apache.rocketmq:rocketmq-client:4.3.0'
+compile 'org.apache.rocketmq:rocketmq-client:5.5.0'
 ```
 ### 2 发送消息
 ##### 2.1 使用Producer发送同步消息

docs/cn/RocketMQ_Example.md

@@ -54,12 +54,12 @@
 <dependency>
     <groupId>org.apache.rocketmq</groupId>
     <artifactId>rocketmq-client</artifactId>
-    <version>4.9.1</version>
+    <version>5.5.0</version>
 </dependency>
 ```
 `gradle`
 ```
-compile 'org.apache.rocketmq:rocketmq-client:4.3.0'
+compile 'org.apache.rocketmq:rocketmq-client:5.5.0'
 ```
 ### 1.2 消息发送