upgrade junit

Author: Siquan Lv (silv)

README.md

@@ -7,7 +7,7 @@ Gossip protocol is a method for a group of nodes to discover and check the livel
 <dependency>
   <groupId>net.lvsq</groupId>
   <artifactId>jgossip</artifactId>
-  <version>1.3.2</version>
+  <version>1.3.3</version>
 </dependency>
 ```
 

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>net.lvsq</groupId>
     <artifactId>jgossip</artifactId>
-    <version>1.3.2</version>
+    <version>1.3.3</version>
     <packaging>jar</packaging>
 
     <name>jgossip</name>