build(deps-dev): bump webpack-cli from 3.3.9 to 3.3.10

Bumps [webpack-cli](https://github.com/webpack/webpack-cli) from 3.3.9 to 3.3.10.
- [Release notes](https://github.com/webpack/webpack-cli/releases)
- [Changelog](https://github.com/webpack/webpack-cli/blob/v3.3.10/CHANGELOG.md)
- [Commits](webpack/webpack-cli@v3.3.9...v3.3.10)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package-lock.json

@@ -49,7 +49,7 @@
     "web-ext": "^3.1.1",
     "webextension-polyfill": "^0.5.0",
     "webpack": "^4.41.2",
-    "webpack-cli": "^3.3.9",
+    "webpack-cli": "^3.3.10",
     "webpack-merge": "^4.2.2"
   },
   "dependencies": {