chore(deps): update dependency org.easymock:easymock to v5.6.0

Author: renovate-bot

google-cloud-jar-parent/pom.xml

@@ -97,7 +97,7 @@
       <dependency>
         <groupId>org.easymock</groupId>
         <artifactId>easymock</artifactId>
-        <version>5.5.0</version>
+        <version>5.6.0</version>
         <scope>test</scope>
       </dependency>
       <dependency>