chore(deps): bump koa and @nx/angular

Removes [koa](https://github.com/koajs/koa). It's no longer used after updating ancestor dependency [@nx/angular](https://github.com/nrwl/nx/tree/HEAD/packages/angular). These dependencies need to be updated together.


Removes `koa`

Updates `@nx/angular` from 22.3.3 to 22.6.3
- [Release notes](https://github.com/nrwl/nx/releases)
- [Commits](https://github.com/nrwl/nx/commits/22.6.3/packages/angular)

---
updated-dependencies:
- dependency-name: koa
  dependency-version: 
  dependency-type: indirect
- dependency-name: "@nx/angular"
  dependency-version: 22.6.3
  dependency-type: direct:development
...

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

Author: dependabot[bot]