fix test

Author: smalyshev

server/src/internalClusterTest/java/org/elasticsearch/search/ccs/CrossClusterIT.java

@@ -84,6 +84,11 @@
 // can focus on several cross cluster search scenarios.
 public class CrossClusterIT extends AbstractCrossClusterSearchTestCase {
 
+    @Override
+    protected Map<String, Boolean> skipUnavailableForRemoteClusters() {
+        return Map.of();
+    }
+
     protected int indexDocs(Client client, String index) {
         return indexDocs(client, "f", index);
     }