Bump yaml and css-minimizer-webpack-plugin in /portal/v1

Removes [yaml](https://github.com/eemeli/yaml). It's no longer used after updating ancestor dependency [css-minimizer-webpack-plugin](https://github.com/webpack-contrib/css-minimizer-webpack-plugin). These dependencies need to be updated together.


Removes `yaml`

Updates `css-minimizer-webpack-plugin` from 4.2.2 to 5.0.0
- [Release notes](https://github.com/webpack-contrib/css-minimizer-webpack-plugin/releases)
- [Changelog](https://github.com/webpack-contrib/css-minimizer-webpack-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/css-minimizer-webpack-plugin/compare/v4.2.2...v5.0.0)

---
updated-dependencies:
- dependency-name: yaml
  dependency-type: indirect
- dependency-name: css-minimizer-webpack-plugin
  dependency-type: direct:development
...

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

portal/v1/package.json

@@ -18,7 +18,7 @@
     "devDependencies": {
         "copy-webpack-plugin": "^11.0.0",
         "css-loader": "^6.7.1",
-        "css-minimizer-webpack-plugin": "^4.2.2",
+        "css-minimizer-webpack-plugin": "^5.0.0",
         "exports-loader": "^4.0.0",
         "html-webpack-plugin": "^5.3.1",
         "mini-css-extract-plugin": "^2.6.1",