chore(deps): bump idna in /.github/workflows/dependencies (#12678)

Bumps [idna](https://github.com/kjd/idna) from 3.8 to 3.9.
- [Release notes](https://github.com/kjd/idna/releases)
- [Changelog](https://github.com/kjd/idna/blob/master/HISTORY.rst)
- [Commits](https://github.com/kjd/idna/compare/v3.8...v3.9

)

---
updated-dependencies:
- dependency-name: idna
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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