chore(deps-dev): bump webpack-cli from 3.3.12 to 4.7.0

Bumps [webpack-cli](https://github.com/webpack/webpack-cli) from 3.3.12 to 4.7.0.
- [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/v3.3.12...webpack-cli@4.7.0)

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

Author: dependabot-preview[bot]

package.json

@@ -87,6 +87,6 @@
     "typescript": "^4.0.5",
     "webpack": "^4.44.2",
     "webpack-bundle-analyzer": "^4.1.0",
-    "webpack-cli": "^3.3.12"
+    "webpack-cli": "^4.7.0"
   }
 }