Fixed grunt-webpack circular reference issue

Gruntfile.js

@@ -180,7 +180,8 @@ module.exports = function (grunt) {
         },
         webpack: {
             options: webpackConfig,
-            web: {
+            web: () => {
+                return {
                     mode: "production",
                     target: "web",
                     entry: Object.assign({
@@ -216,6 +217,7 @@ module.exports = function (grunt) {
                             openAnalyzer: false
                         }),
                     ]
+                };
             },
             webInline: {
                 mode: "production",