build(deps-dev): bump cpx2 from 4.2.0 to 6.0.1 in /functions

Bumps [cpx2](https://github.com/bcomnes/cpx2) from 4.2.0 to 6.0.1.
- [Release notes](https://github.com/bcomnes/cpx2/releases)
- [Changelog](https://github.com/bcomnes/cpx2/blob/master/CHANGELOG.md)
- [Commits](bcomnes/cpx2@v4.2.0...v6.0.1)

---
updated-dependencies:
- dependency-name: cpx2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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