Bump debug and live-server

Bumps [debug](https://github.com/debug-js/debug) to 2.6.9 and updates ancestor dependency [live-server](https://github.com/tapio/live-server). These dependencies need to be updated together.


Updates `debug` from 2.2.0 to 2.6.9
- [Release notes](https://github.com/debug-js/debug/releases)
- [Changelog](https://github.com/debug-js/debug/blob/2.6.9/CHANGELOG.md)
- [Commits](debug-js/debug@2.2.0...2.6.9)

Updates `live-server` from 1.1.0 to 1.2.2
- [Release notes](https://github.com/tapio/live-server/releases)
- [Commits](https://github.com/tapio/live-server/commits)

---
updated-dependencies:
- dependency-name: debug
  dependency-type: indirect
- dependency-name: live-server
  dependency-type: direct:development
...

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

Author: dependabot[bot]