[ISSUE #389] Upgrade rocketmq-samples version to 2.2.2-SNAPSHOT (#390)

diff --git a/rocketmq-spring-boot-samples/pom.xml b/rocketmq-spring-boot-samples/pom.xml
index dbca13e..008f8e8 100644
--- a/rocketmq-spring-boot-samples/pom.xml
+++ b/rocketmq-spring-boot-samples/pom.xml
@@ -24,7 +24,7 @@
     <groupId>org.apache.rocketmq</groupId>
     <artifactId>rocketmq-spring-boot-samples</artifactId>
     <packaging>pom</packaging>
-    <version>2.2.1-SNAPSHOT</version>
+    <version>2.2.2-SNAPSHOT</version>
     
     <name>RocketMQ Spring Boot Samples</name>
     <description>Samples for RocketMQ Spring Boot</description>
@@ -40,7 +40,7 @@
     <properties>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        <rocketmq-spring-boot-starter-version>2.2.1-SNAPSHOT</rocketmq-spring-boot-starter-version>
+        <rocketmq-spring-boot-starter-version>2.2.2-SNAPSHOT</rocketmq-spring-boot-starter-version>
     </properties>
 
     <dependencies>