ACP2E-45: Tiered pricing tax always shows including tax

 - Fixed the static test error.

Author: devarul

app/code/Magento/ConfigurableProduct/composer.json

@@ -16,7 +16,8 @@
         "magento/module-media-storage": "*",
         "magento/module-quote": "*",
         "magento/module-store": "*",
-        "magento/module-ui": "*"
+        "magento/module-ui": "*",
+        "magento/module-tax": "*"
     },
     "suggest": {
         "magento/module-msrp": "*",