Deps: Bump the python-packages group with 4 updates

Bumps the python-packages group with 4 updates: [coverage](https://github.com/coveragepy/coveragepy), [anyio](https://github.com/agronholm/anyio), [certifi](https://github.com/certifi/python-certifi) and [ruff](https://github.com/astral-sh/ruff).


Updates `coverage` from 7.14.1 to 7.14.2
- [Release notes](https://github.com/coveragepy/coveragepy/releases)
- [Changelog](https://github.com/coveragepy/coveragepy/blob/main/CHANGES.rst)
- [Commits](coveragepy/coveragepy@7.14.1...7.14.2)

Updates `anyio` from 4.13.0 to 4.14.0
- [Release notes](https://github.com/agronholm/anyio/releases)
- [Commits](agronholm/anyio@4.13.0...4.14.0)

Updates `certifi` from 2026.5.20 to 2026.6.17
- [Commits](certifi/python-certifi@2026.05.20...2026.06.17)

Updates `ruff` from 0.15.17 to 0.15.18
- [Release notes](https://github.com/astral-sh/ruff/releases)
- [Changelog](https://github.com/astral-sh/ruff/blob/main/CHANGELOG.md)
- [Commits](astral-sh/ruff@0.15.17...0.15.18)

---
updated-dependencies:
- dependency-name: coverage
  dependency-version: 7.14.2
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: python-packages
- dependency-name: anyio
  dependency-version: 4.14.0
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: certifi
  dependency-version: 2026.6.17
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: python-packages
- dependency-name: ruff
  dependency-version: 0.15.18
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: python-packages
...

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

Author: dependabot[bot]