suppressed deprecation warning

src/test/java/org/gcube/testutility/TestUsageRecord.java

@@ -133,6 +133,7 @@ public class TestUsageRecord {
 	 * Create a valid #StorageVolumeUsageRecord with scope set automatically.
 	 * @return the created #StorageVolumeUsageRecord
 	 */
+	@SuppressWarnings("deprecation")
 	public static StorageStatusRecord createTestStorageVolumeUsageRecord() {
 		StorageStatusRecord usageRecord = new StorageStatusRecord();
 		try {