Bump webpack-cli from 5.1.4 to 6.0.1

Bumps [webpack-cli](https://github.com/webpack/webpack-cli) from 5.1.4 to 6.0.1.
- [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@6.0.1)

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

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

package.json

@@ -48,7 +48,7 @@
     "use-resize-observer": "^9.1.0",
     "webm-duration-fix": "^1.0.4",
     "webpack": "^5.97.1",
-    "webpack-cli": "^5.1.4"
+    "webpack-cli": "^6.0.1"
   },
   "devDependencies": {
     "@opencast/eslint-config-ts-react": "^0.2.0",