Bump webpack from 5.76.0 to 5.94.0 in /pkg/extension

Bumps [webpack](https://github.com/webpack/webpack) from 5.76.0 to 5.94.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](https://github.com/webpack/webpack/compare/v5.76.0...v5.94.0)

---
updated-dependencies:
- dependency-name: webpack
  dependency-type: direct:development
...

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

pkg/extension/package.json

@@ -20,7 +20,7 @@
     "semistandard": "^16.0.1",
     "web-ext": "^6.4.0",
     "webext-store-incompat-fixer": "^0.1.36",
-    "webpack": "^5.76.0",
+    "webpack": "^5.94.0",
     "webpack-cli": "^4.3.1",
     "webpack-merge": "^5.7.3"
   },