Bump webpack-cli from 4.8.0 to 4.9.1

Bumps [webpack-cli](https://github.com/webpack/webpack-cli) from 4.8.0 to 4.9.1.
- [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@4.8.0...webpack-cli@4.9.1)

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

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

package.json

@@ -297,7 +297,7 @@
         "typescript": "^4.4.4",
         "vscode-test": "^1.6.1",
         "webpack": "^5.55.1",
-        "webpack-cli": "^4.8.0"
+        "webpack-cli": "^4.9.1"
     },
     "dependencies": {
         "axios": "^0.21.4",