Bump node-zendesk from 3.0.3 to 5.0.13

Bumps [node-zendesk](https://github.com/blakmatrix/node-zendesk) from 3.0.3 to 5.0.13.
- [Release notes](https://github.com/blakmatrix/node-zendesk/releases)
- [Commits](https://github.com/blakmatrix/node-zendesk/commits/v5.0.13)

---
updated-dependencies:
- dependency-name: node-zendesk
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>