chore(deps): bump webpack-dev-server and @angular-devkit/build-angular

Bumps [webpack-dev-server](https://github.com/webpack/webpack-dev-server) to 5.2.2 and updates ancestor dependency [@angular-devkit/build-angular](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Updates `webpack-dev-server` from 4.15.1 to 5.2.2
- [Release notes](https://github.com/webpack/webpack-dev-server/releases)
- [Changelog](https://github.com/webpack/webpack-dev-server/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack/webpack-dev-server/compare/v4.15.1...v5.2.2)

Updates `@angular-devkit/build-angular` from 16.2.16 to 20.1.3
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular-cli/compare/16.2.16...20.1.3)

---
updated-dependencies:
- dependency-name: webpack-dev-server
  dependency-version: 5.2.2
  dependency-type: indirect
- dependency-name: "@angular-devkit/build-angular"
  dependency-version: 20.1.3
  dependency-type: direct:development
...

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

src/portal/package.json

@@ -53,7 +53,7 @@
     "zone.js": "^0.13.3"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^16.2.16",
+    "@angular-devkit/build-angular": "^20.1.3",
     "@angular-eslint/builder": "16.1.2",
     "@angular-eslint/eslint-plugin": "16.1.2",
     "@angular-eslint/eslint-plugin-template": "16.1.2",