Update set-webpack-public-path-plugin

Author: octogonz

playground/package.json

@@ -19,7 +19,7 @@
   },
   "devDependencies": {
     "@rushstack/eslint-config": "0.4.0",
-    "@microsoft/set-webpack-public-path-plugin": "~2.1.123",
+    "@rushstack/set-webpack-public-path-plugin": "~2.4.1",
     "@types/webpack-env": "~1.14.0",
     "clean-webpack-plugin": "~3.0.0",
     "css-loader": "~3.1.0",