Bump webpack-cli from 5.1.4 to 6.0.0

Bumps [webpack-cli](https://github.com/webpack/webpack-cli) from 5.1.4 to 6.0.0.
- [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@5.1.4...webpack-cli@6.0.0)

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

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

package.json

@@ -41,7 +41,7 @@
     "stylelint-config-standard-scss": "^14.0.0",
     "trim-newlines": ">=5.0.0",
     "webpack": "^5.97.1",
-    "webpack-cli": "^5.1.4"
+    "webpack-cli": "^6.0.0"
   },
   "dependencies": {
     "@popperjs/core": "^2.11.8",