Bump jsonwebtoken and probot

Removes [jsonwebtoken](https://github.com/auth0/node-jsonwebtoken). It's no longer used after updating ancestor dependency [probot](https://github.com/probot/probot). These dependencies need to be updated together.


Removes `jsonwebtoken`

Updates `probot` from 10.19.0 to 12.3.2
- [Release notes](https://github.com/probot/probot/releases)
- [Commits](probot/probot@v10.19.0...v12.3.2)

---
updated-dependencies:
- dependency-name: jsonwebtoken
  dependency-type: indirect
- dependency-name: probot
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>