Deps: Bump the python-packages group with 3 updates

Bumps the python-packages group with 3 updates: [exceptiongroup](https://github.com/agronholm/exceptiongroup), [ruff](https://github.com/astral-sh/ruff) and [shtab](https://github.com/iterative/shtab).


Updates `exceptiongroup` from 1.3.0 to 1.3.1
- [Release notes](https://github.com/agronholm/exceptiongroup/releases)
- [Changelog](https://github.com/agronholm/exceptiongroup/blob/main/CHANGES.rst)
- [Commits](agronholm/exceptiongroup@1.3.0...1.3.1)

Updates `ruff` from 0.14.5 to 0.14.6
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.14.5...0.14.6)

Updates `shtab` from 1.7.2 to 1.8.0
- [Release notes](https://github.com/iterative/shtab/releases)
- [Commits](iterative/shtab@v1.7.2...v1.8.0)

---
updated-dependencies:
- dependency-name: exceptiongroup
  dependency-version: 1.3.1
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: ruff
  dependency-version: 0.14.6
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: shtab
  dependency-version: 1.8.0
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: python-packages
...

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Author: dependabot[bot]