Bump nanoid and mocha in /tiledesk-chatbot-util

Bumps [nanoid](https://github.com/ai/nanoid) and [mocha](https://github.com/mochajs/mocha). These dependencies needed to be updated together.

Updates `nanoid` from 3.1.12 to 3.3.3
- [Release notes](https://github.com/ai/nanoid/releases)
- [Changelog](https://github.com/ai/nanoid/blob/main/CHANGELOG.md)
- [Commits](ai/nanoid@3.1.12...3.3.3)

Updates `mocha` from 8.2.1 to 10.0.0
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](mochajs/mocha@v8.2.1...v10.0.0)

---
updated-dependencies:
- dependency-name: nanoid
  dependency-type: indirect
- dependency-name: mocha
  dependency-type: direct:development
...

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