Deps: Bump the python-packages group across 1 directory with 3 updates

Bumps the python-packages group with 3 updates in the / directory: [pontos](https://github.com/greenbone/pontos), [coverage](https://github.com/coveragepy/coveragepy) and [ruff](https://github.com/astral-sh/ruff).


Updates `pontos` from 26.2.0 to 26.3.1
- [Release notes](https://github.com/greenbone/pontos/releases)
- [Commits](greenbone/pontos@v26.2.0...v26.3.1)

Updates `coverage` from 7.13.4 to 7.13.5
- [Release notes](https://github.com/coveragepy/coveragepy/releases)
- [Changelog](https://github.com/coveragepy/coveragepy/blob/main/CHANGES.rst)
- [Commits](coveragepy/coveragepy@7.13.4...7.13.5)

Updates `ruff` from 0.15.5 to 0.15.7
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.15.5...0.15.7)

---
updated-dependencies:
- dependency-name: pontos
  dependency-version: 26.3.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: coverage
  dependency-version: 7.13.5
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: ruff
  dependency-version: 0.15.7
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: python-packages
...

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Author: dependabot[bot]