Bump serialize-javascript and terser-webpack-plugin

Removes [serialize-javascript](https://github.com/yahoo/serialize-javascript). It's no longer used after updating ancestor dependency [terser-webpack-plugin](https://github.com/webpack/terser-webpack-plugin). These dependencies need to be updated together.


Removes `serialize-javascript`

Updates `terser-webpack-plugin` from 5.3.10 to 5.4.0
- [Release notes](https://github.com/webpack/terser-webpack-plugin/releases)
- [Changelog](https://github.com/webpack/terser-webpack-plugin/blob/main/CHANGELOG.md)
- [Commits](webpack/terser-webpack-plugin@v5.3.10...v5.4.0)

---
updated-dependencies:
- dependency-name: serialize-javascript
  dependency-version: 
  dependency-type: indirect
- dependency-name: terser-webpack-plugin
  dependency-version: 5.4.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

addons/content-browse/ui/package-lock.json

@@ -20,7 +20,7 @@
     "webpack": "^5.94.0",
     "webpack-cli": "^5.1.4",
     "webpack-dev-server": "^4.15.1",
-    "terser-webpack-plugin": "^5.3.7"
+    "terser-webpack-plugin": "^5.4.0"
   },
   "scripts": {
     "webpack": "node node_modules/webpack/bin/webpack.js",