build(deps-dev): bump ip from 2.0.0 to 2.0.1 in /demo

Bumps [ip](https://github.com/indutny/node-ip) from 2.0.0 to 2.0.1.
- [Commits](indutny/node-ip@v2.0.0...v2.0.1)

---
updated-dependencies:
- dependency-name: ip
  dependency-type: indirect
...

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