fix ci issue

Author: inv-jishnu

data-loader/cli/src/main/java/com/scalar/db/dataloader/cli/command/dataexport/ConsoleExportProgressReporter.java

@@ -62,6 +62,15 @@ public static void reportError(String message, Throwable throwable) {
     }
   }
 
+    /**
+     * Prints a formatted waring message to the console.
+     *
+     * @param message the error description
+     */
+    public static void reportWarning(String message) {
+        System.err.println("%n!! Warning: " + message);
+    }
+
   /**
    * Formats elapsed time in "Xm Ys" format.
    *

data-loader/cli/src/main/java/com/scalar/db/dataloader/cli/command/dataexport/ExportCommand.java

@@ -157,7 +157,8 @@ private void warnAboutIgnoredDeprecatedOptions() {
                   + "Use the 'scalar.db.consensus_commit.include_metadata.enabled' configuration property "
                   + "in your ScalarDB properties file to control whether transaction metadata is included in scan operations.|@");
 
-      logger.warn(warning);
+//      logger.warn(warning);
+        ConsoleExportProgressReporter.reportWarning(warning);
     }
   }