build(deps): bump http-proxy-middleware and @angular-devkit/build-angular

Bumps [http-proxy-middleware](https://github.com/chimurai/http-proxy-middleware) to 3.0.5 and updates ancestor dependency [@angular-devkit/build-angular](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Updates `http-proxy-middleware` from 3.0.3 to 3.0.5
- [Release notes](https://github.com/chimurai/http-proxy-middleware/releases)
- [Changelog](https://github.com/chimurai/http-proxy-middleware/blob/master/CHANGELOG.md)
- [Commits](chimurai/http-proxy-middleware@v3.0.3...v3.0.5)

Updates `@angular-devkit/build-angular` from 18.2.12 to 18.2.20
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](angular/angular-cli@18.2.12...18.2.20)

---
updated-dependencies:
- dependency-name: http-proxy-middleware
  dependency-version: 3.0.5
  dependency-type: indirect
- dependency-name: "@angular-devkit/build-angular"
  dependency-version: 18.2.20
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]