build(deps-dev): bump webpack-cli from 3.3.11 to 4.7.2

Bumps [webpack-cli](https://github.com/webpack/webpack-cli) from 3.3.11 to 4.7.2.
- [Release notes](https://github.com/webpack/webpack-cli/releases)
- [Changelog](https://github.com/webpack/webpack-cli/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack/webpack-cli/compare/v3.3.11...webpack-cli@4.7.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -69,7 +69,7 @@
     "vuetify": "^2.1.3",
     "vuetify-loader": "^1.3.0",
     "webpack": "^4.29.0",
-    "webpack-cli": "^3.2.1",
+    "webpack-cli": "^4.7.2",
     "webpack-dev-server": "^3.1.14"
   }
 }