fix(package): update html-webpack-plugin to version 4.2.0

Closes #178

Author: greenkeeper[bot]

examples/SSR/typescript-react/package.json

@@ -19,7 +19,7 @@
     "compression": "^1.7.2",
     "express": "^4.16.3",
     "file-loader": "^1.1.11",
-    "html-webpack-plugin": "^3.2.0",
+    "html-webpack-plugin": "^4.2.0",
     "react": "^16.9.0",
     "react-dom": "^16.9.0",
     "react-helmet": "^5.2.0",