upgrade webpack, webpack-cli

package.json

@@ -72,7 +72,7 @@
         "trezor-connect": "7.0.0-beta.2",
         "wallet-address-validator": "^0.2.4",
         "web3": "1.0.0-beta.35",
-        "webpack": "^4.16.3",
+        "webpack": "^4.29.0",
         "webpack-build-notifier": "^0.1.29",
         "webpack-bundle-analyzer": "^2.13.1",
         "whatwg-fetch": "^2.0.4",
@@ -114,7 +114,7 @@
         "stylelint-custom-processor-loader": "^0.5.0",
         "stylelint-processor-styled-components": "^1.3.2",
         "stylelint-webpack-plugin": "^0.10.5",
-        "webpack-cli": "^2.1.3",
+        "webpack-cli": "^3.2.1",
         "webpack-dev-server": "^3.1.4",
         "yargs": "11.0.0"
     },