Bump jose from 4.12.0 to 4.15.5 in /src/functions

Bumps [jose](https://github.com/panva/jose) from 4.12.0 to 4.15.5.
- [Release notes](https://github.com/panva/jose/releases)
- [Changelog](https://github.com/panva/jose/blob/v4.15.5/CHANGELOG.md)
- [Commits](panva/jose@v4.12.0...v4.15.5)

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

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Author: dependabot[bot]