Bump webpack from 5.76.1 to 5.94.0 in /js

Bumps [webpack](https://github.com/webpack/webpack) from 5.76.1 to 5.94.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v5.76.1...v5.94.0)

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

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

js/package.json

@@ -2,7 +2,7 @@
     "private": true,
     "devDependencies": {
         "flarum-webpack-config": "^2.0.0",
-        "webpack": "^5.65.0",
+        "webpack": "^5.94.0",
         "webpack-cli": "^4.9.1",
         "prettier": "^2.5.1",
         "@flarum/prettier-config": "^1.0.0",