Bump webpack-cli from 4.10.0 to 5.0.0 (#368)

Bumps [webpack-cli](https://github.com/webpack/webpack-cli) from 4.10.0 to 5.0.0.
- [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/webpack-cli@4.10.0...webpack-cli@5.0.0)

---
updated-dependencies:
- dependency-name: webpack-cli
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -25,7 +25,7 @@
     "nightwatch": "^1.7.13",
     "selenium-server-standalone-jar": "3.141.59",
     "webpack": "^5.75.0",
-    "webpack-cli": "^4.10.0"
+    "webpack-cli": "^5.0.0"
   },
   "scripts": {
     "build": "rm -rf singular && webpack",