chore(deps): bump koa (#964)

Bumps the npm_and_yarn group with 1 update in the /examples/javascript-ext/nx-demo directory: [koa](https://github.com/koajs/koa).


Updates `koa` from 3.0.1 to 3.0.3
- [Release notes](https://github.com/koajs/koa/releases)
- [Changelog](https://github.com/koajs/koa/blob/master/History.md)
- [Commits](koajs/koa@v3.0.1...v3.0.3)

---
updated-dependencies:
- dependency-name: koa
  dependency-version: 3.0.3
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]