Bump easymock 5.6.0 to support Java 25 (#3363)

Author: pan3793

pom.xml

@@ -166,7 +166,7 @@
     <dependency>
       <groupId>org.easymock</groupId>
       <artifactId>easymock</artifactId>
-      <version>5.5.0</version>
+      <version>5.6.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>