Bump jose from 2.0.5 to 2.0.6 in /cs-walkthrough/functions

Bumps [jose](https://github.com/panva/jose) from 2.0.5 to 2.0.6.
- [Release notes](https://github.com/panva/jose/releases)
- [Changelog](https://github.com/panva/jose/blob/v2.0.6/CHANGELOG.md)
- [Commits](panva/jose@v2.0.5...v2.0.6)

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

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Author: dependabot[bot]