fix(TUP-20317)node of JDBC should be hidden when import db items (#1776)

https://jira.talendforge.org/browse/TUP-20317

main/plugins/org.talend.repository.items.importexport/src/main/java/org/talend/repository/items/importexport/wizard/models/ImportNodesBuilder.java

@@ -295,6 +295,9 @@ public class ImportNodesBuilder {
                 return null;
             }
 
+            if ("JDBC".equals(curType.getType())) {
+                curType = ERepositoryObjectType.METADATA_CONNECTIONS;
+            }
             TypeImportNode typeImportNode = typeNodesChildrenMap.get(curType);
             if (typeImportNode != null) {
                 return typeImportNode;