deps: update easymock to 5.6.0

Fixes JDK25 issue in easymock/easymock#760

Author: diegomarquezp

java-core/pom.xml

@@ -53,7 +53,7 @@
       <dependency>
         <groupId>org.easymock</groupId>
         <artifactId>easymock</artifactId>
-        <version>5.5.0</version>
+        <version>5.6.0</version>
         <scope>test</scope>
       </dependency>
       <dependency>