test: add CB4 multi version gadgets integration test

vul/vul-webapp-deserialize/src/main/java/JavaReadObCB161jServlet.java

@@ -0,0 +1,17 @@
+import javax.servlet.annotation.WebServlet;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * @author ReaJason
+ * @since 2024/12/10
+ */
+@WebServlet("/java_deserialize/cb161")
+public class JavaReadObCB161jServlet extends BaseDeserializeServlet {
+
+    @Override
+    List<String> getDependentPaths() {
+        return Arrays.asList("commons-beanutils-1.6.1.jar", "commons-collections-2.0.jar", "commons-logging-1.0.jar");
+    }
+
+}