suppressing forbidden warnings

modules/ingest-geoip/src/test/java/org/elasticsearch/ingest/geoip/MaxMindSupportTests.java

@@ -633,6 +633,7 @@ private static String getFormattedList(Set<String> fields) {
      * This returns all AbstractResponse classes that are declared in transform methods in classes defined in MaxmindIpDataLookups.
      */
     @SuppressWarnings("unchecked")
+    @SuppressForbidden(reason = "Need declared classes and methods")
     private static Set<Class<? extends AbstractResponse>> getUsedMaxMindResponseClasses() {
         Set<Class<? extends AbstractResponse>> result = new HashSet<>();
         Class<?>[] declaredClasses = MaxmindIpDataLookups.class.getDeclaredClasses();