Build(deps): Bump the python-packages group with 3 updates

Bumps the python-packages group with 3 updates: [paho-mqtt](https://github.com/eclipse/paho.mqtt.python), [pontos](https://github.com/greenbone/pontos) and [black](https://github.com/psf/black).


Updates `paho-mqtt` from 1.6.1 to 2.0.0
- [Release notes](https://github.com/eclipse/paho.mqtt.python/releases)
- [Changelog](https://github.com/eclipse/paho.mqtt.python/blob/master/ChangeLog.txt)
- [Commits](eclipse-paho/paho.mqtt.python@v1.6.1...v2.0.0)

Updates `pontos` from 24.1.2 to 24.2.1
- [Release notes](https://github.com/greenbone/pontos/releases)
- [Commits](greenbone/pontos@v24.1.2...v24.2.1)

Updates `black` from 23.12.1 to 24.2.0
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](psf/black@23.12.1...24.2.0)

---
updated-dependencies:
- dependency-name: paho-mqtt
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: python-packages
- dependency-name: pontos
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: black
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: python-packages
...

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