Update dependency org.easymock:easymock to v5.6.0

Author: renovate[bot]

pom.xml

@@ -242,7 +242,7 @@ under the License.
     <dependency>
       <groupId>org.easymock</groupId>
       <artifactId>easymock</artifactId>
-      <version>5.5.0</version>
+      <version>5.6.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>