ACP2E-561 Fixed static test failure

Author: mahesh-singh-rajawat

app/code/Magento/CatalogImportExport/Test/Unit/Model/Import/ProductTest.php

@@ -66,13 +66,13 @@
  */
 class ProductTest extends AbstractImportTestCase
 {
-    const MEDIA_DIRECTORY = 'media/import';
+    private const MEDIA_DIRECTORY = 'media/import';
 
-    const ENTITY_TYPE_ID = 1;
+    private const ENTITY_TYPE_ID = 1;
 
-    const ENTITY_TYPE_CODE = 'catalog_product';
+    private const ENTITY_TYPE_CODE = 'catalog_product';
 
-    const ENTITY_ID = 13;
+    private const ENTITY_ID = 13;
 
     /**
      * @var AdapterInterface|MockObject