Bump koa from 2.2.0 to 2.13.0
Bump koa from 2.2.0 to 2.13.0

Bumps [koa](https://github.com/koajs/koa) from 2.2.0 to 2.13.0.
- [Release notes](https://github.com/koajs/koa/releases)
- [Changelog](https://github.com/koajs/koa/blob/master/History.md)
- [Commits](https://github.com/koajs/koa/compare/2.2.0...2.13.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
bhousel/svg-labels