Bump koa in the npm_and_yarn group across 1 directory

Bumps the npm_and_yarn group with 1 update in the / directory: [koa](https://github.com/koajs/koa).


Updates `koa` from 2.15.4 to 2.16.1
- [Release notes](https://github.com/koajs/koa/releases)
- [Changelog](https://github.com/koajs/koa/blob/master/History.md)
- [Commits](koajs/koa@2.15.4...v2.16.1)

---
updated-dependencies:
- dependency-name: koa
  dependency-version: 2.16.1
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

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

Author: dependabot[bot]