build(deps-dev): bump poku from 1.20.1 to 1.21.0 (#2830)

Bumps [poku](https://github.com/wellwelwel/poku) from 1.20.1 to 1.21.0.
- [Release notes](https://github.com/wellwelwel/poku/releases)
- [Changelog](https://github.com/wellwelwel/poku/blob/main/CHANGELOG.md)
- [Commits](wellwelwel/poku@v1.20.1...v1.21.0)

---
updated-dependencies:
- dependency-name: poku
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>